sys/ecc: remove separate hamming256 folder

Makefile.dep

@@ -811,3 +811,7 @@ USEPKG := $(sort $(USEPKG))
 ifneq ($(OLD_USEMODULE) $(OLD_USEPKG),$(USEMODULE) $(USEPKG))
   include $(RIOTBASE)/Makefile.dep
 endif
+
+ifneq (,$(filter ecc_%,$(USEMODULE)))
+  USEMODULE += ecc
+endif

makefiles/pseudomodules.inc.mk

@@ -6,6 +6,7 @@ PSEUDOMODULES += can_raw
 PSEUDOMODULES += ccn-lite-utils
 PSEUDOMODULES += conn_can_isotp_multi
 PSEUDOMODULES += core_%
+PSEUDOMODULES += ecc_%
 PSEUDOMODULES += emb6_router
 PSEUDOMODULES += event_%
 PSEUDOMODULES += gnrc_ipv6_default

sys/Makefile

@@ -82,9 +82,6 @@ endif
 ifneq (,$(filter tcp,$(USEMODULE)))
   DIRS += net/transport_layer/tcp
 endif
-ifneq (,$(filter hamming256,$(USEMODULE)))
-  DIRS += ecc/hamming256
-endif
 ifneq (,$(filter uhcpc,$(USEMODULE)))
   DIRS += net/application_layer/uhcp
 endif

sys/ecc/hamming256/Makefile → sys/ecc/Makefile

+SUBMODULES := 1
+
 include $(RIOTBASE)/Makefile.base

tests/unittests/tests-ecc/Makefile.include

-USEMODULE += hamming256
+USEMODULE += ecc_hamming256