ColdFire: Add CPU compile flag for mcf5301x and mcf532x

Add CPU compile flag -mcpu=53015 in cpu/config.mk

Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/cpu/mcf532x/config.mk b/cpu/mcf532x/config.mk
index 0cb90ac..b783444 100644
--- a/cpu/mcf532x/config.mk
+++ b/cpu/mcf532x/config.mk
@@ -24,8 +24,20 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
+
+cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
+is5301x:=$(shell grep CONFIG_MCF5301x $(TOPDIR)/include/$(cfg))
+is532x:=$(shell grep CONFIG_MCF532x $(TOPDIR)/include/$(cfg))
+
 ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
+
+ifneq (,$(findstring CONFIG_MCF5301x,$(is5301x)))
+PLATFORM_CPPFLAGS += -mcpu=53015 -fPIC
+endif
+ifneq (,$(findstring CONFIG_MCF532x,$(is532x)))
 PLATFORM_CPPFLAGS += -mcpu=5329 -fPIC
+endif
+
 else
 PLATFORM_CPPFLAGS += -m5307 -fPIC
 endif