ColdFire: Add M5208EVB and MCF520x CPU support

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/cpu/mcf52x2/config.mk b/cpu/mcf52x2/config.mk
index 8292736..52751be 100644
--- a/cpu/mcf52x2/config.mk
+++ b/cpu/mcf52x2/config.mk
@@ -26,6 +26,7 @@
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
 
 cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
+is5208:=$(shell grep CONFIG_M5208 $(TOPDIR)/include/$(cfg))
 is5249:=$(shell grep CONFIG_M5249 $(TOPDIR)/include/$(cfg))
 is5253:=$(shell grep CONFIG_M5253 $(TOPDIR)/include/$(cfg))
 is5271:=$(shell grep CONFIG_M5271 $(TOPDIR)/include/$(cfg))
@@ -36,6 +37,9 @@
 
 ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 
+ifneq (,$(findstring CONFIG_M5208,$(is5208)))
+PLATFORM_CPPFLAGS += -mcpu=5208
+endif
 ifneq (,$(findstring CONFIG_M5249,$(is5249)))
 PLATFORM_CPPFLAGS += -mcpu=5249
 endif