tests/lwip*: blacklist esp8266 boards

tests/lwip/Makefile

@@ -3,6 +3,7 @@ include ../Makefile.tests_common
 # lwIP's memory management doesn't seem to work on non 32-bit platforms at the
 # moment.
 BOARD_BLACKLIST := arduino-uno arduino-duemilanove arduino-mega2560 chronos \
+                   esp8266-esp-12x esp8266-olimex-mod esp8266-sparkfun-thing \
                    msb-430 msb-430h telosb waspmote-pro wsn430-v1_3b \
                    wsn430-v1_4 z1 jiminy-mega256rfr2 mega-xplained
 BOARD_INSUFFICIENT_MEMORY := airfy-beacon hifive1 nrf6310 nucleo-f031k6 nucleo-f042k6 \

tests/lwip_sock_ip/Makefile

@@ -3,6 +3,7 @@ include ../Makefile.tests_common
 # lwIP's memory management doesn't seem to work on non 32-bit platforms at the
 # moment.
 BOARD_BLACKLIST := arduino-uno arduino-duemilanove arduino-mega2560 chronos \
+                   esp8266-esp-12x esp8266-olimex-mod esp8266-sparkfun-thing \
                    msb-430 msb-430h telosb waspmote-pro wsn430-v1_3b \
                    wsn430-v1_4 z1 jiminy-mega256rfr2 mega-xplained
 BOARD_INSUFFICIENT_MEMORY = nucleo-f031k6 nucleo-f042k6 nucleo-l031k6 nucleo-f030r8 \

tests/lwip_sock_tcp/Makefile

@@ -3,6 +3,7 @@ include ../Makefile.tests_common
 # lwIP's memory management doesn't seem to work on non 32-bit platforms at the
 # moment.
 BOARD_BLACKLIST := arduino-uno arduino-duemilanove arduino-mega2560 chronos \
+                   esp8266-esp-12x esp8266-olimex-mod esp8266-sparkfun-thing \
                    msb-430 msb-430h telosb waspmote-pro wsn430-v1_3b \
                    wsn430-v1_4 z1 jiminy-mega256rfr2 mega-xplained
 BOARD_INSUFFICIENT_MEMORY = blackpill bluepill nucleo-f031k6 nucleo-f042k6 \

tests/lwip_sock_udp/Makefile

@@ -3,6 +3,7 @@ include ../Makefile.tests_common
 # lwIP's memory management doesn't seem to work on non 32-bit platforms at the
 # moment.
 BOARD_BLACKLIST := arduino-uno arduino-duemilanove arduino-mega2560 chronos \
+                   esp8266-esp-12x esp8266-olimex-mod esp8266-sparkfun-thing \
                    msb-430 msb-430h telosb waspmote-pro wsn430-v1_3b \
                    wsn430-v1_4 z1 jiminy-mega256rfr2 mega-xplained
 BOARD_INSUFFICIENT_MEMORY = nucleo-f031k6 nucleo-f042k6 nucleo-l031k6 nucleo-f030r8 \