boards: unconditionally include CPU/Makefile.features

The file always exist so no need to do '-include'.

Replaced using:

    sed -i 's|-\(include $(RIOTCPU)/.*/Makefile.features\)|\1|' \
        $(git grep -l  '$(RIOTCPU)/.*/Makefile.features' boards)

boards/pic32-clicker/Makefile.features

@@ -6,4 +6,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = mips32r2
 
--include $(RIOTCPU)/mips_pic32mx/Makefile.features
+include $(RIOTCPU)/mips_pic32mx/Makefile.features

boards/pic32-wifire/Makefile.features

@@ -6,4 +6,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = mips32r2
 
--include $(RIOTCPU)/mips_pic32mz/Makefile.features
+include $(RIOTCPU)/mips_pic32mz/Makefile.features

boards/remote-pa/Makefile.features

@@ -9,4 +9,4 @@ FEATURES_PROVIDED += periph_adc
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m3_2
 
--include $(RIOTCPU)/cc2538/Makefile.features
+include $(RIOTCPU)/cc2538/Makefile.features

boards/remote-reva/Makefile.features

@@ -9,4 +9,4 @@ FEATURES_PROVIDED += periph_adc
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m3_2
 
--include $(RIOTCPU)/cc2538/Makefile.features
+include $(RIOTCPU)/cc2538/Makefile.features

boards/remote-revb/Makefile.features

@@ -9,4 +9,4 @@ FEATURES_PROVIDED += periph_adc
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m3_2
 
--include $(RIOTCPU)/cc2538/Makefile.features
+include $(RIOTCPU)/cc2538/Makefile.features

boards/ruuvitag/Makefile.features

@@ -10,4 +10,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_3
 
--include $(RIOTCPU)/nrf52/Makefile.features
+include $(RIOTCPU)/nrf52/Makefile.features

boards/samd21-xpro/Makefile.features

@@ -12,4 +12,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features

boards/saml21-xpro/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/saml21/Makefile.features
+include $(RIOTCPU)/saml21/Makefile.features

boards/samr21-xpro/Makefile.features

@@ -12,4 +12,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features

boards/samr30-xpro/Makefile.features

@@ -12,4 +12,4 @@ FEATURES_PROVIDED += periph_uart
 FEATURES_MCU_GROUP = cortex_m0_2
 
 # samr30 is a specific flavor of saml21
--include $(RIOTCPU)/saml21/Makefile.features
+include $(RIOTCPU)/saml21/Makefile.features

boards/seeeduino_arch-pro/Makefile.features

@@ -6,4 +6,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m3_1
 
--include $(RIOTCPU)/lpc1768/Makefile.features
+include $(RIOTCPU)/lpc1768/Makefile.features

boards/sensebox_samd21/Makefile.features

@@ -10,4 +10,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features

boards/slstk3401a/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_2
 
--include $(RIOTCPU)/efm32/Makefile.features
+include $(RIOTCPU)/efm32/Makefile.features

boards/slstk3402a/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_2
 
--include $(RIOTCPU)/efm32/Makefile.features
+include $(RIOTCPU)/efm32/Makefile.features

boards/sltb001a/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_2
 
--include $(RIOTCPU)/efm32/Makefile.features
+include $(RIOTCPU)/efm32/Makefile.features

boards/slwstk6000b/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_2
 
--include $(RIOTCPU)/efm32/Makefile.features
+include $(RIOTCPU)/efm32/Makefile.features

boards/slwstk6220a/Makefile.features

@@ -6,4 +6,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MCU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m4_1
 
--include $(RIOTCPU)/ezr32wg/Makefile.features
+include $(RIOTCPU)/ezr32wg/Makefile.features

boards/sodaq-autonomo/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features

boards/sodaq-explorer/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features

boards/sodaq-one/Makefile.features

@@ -11,4 +11,4 @@ FEATURES_PROVIDED += periph_uart
 # The board MPU family (used for grouping by the CI system)
 FEATURES_MCU_GROUP = cortex_m0_2
 
--include $(RIOTCPU)/samd21/Makefile.features
+include $(RIOTCPU)/samd21/Makefile.features