m68k: merge compile flags -ffixed-d7 -sep-data

All arch/m68k/cpu/*/config.mk define the same flags
  PLAGFORM_REFLFLAGS += -ffixed-d7 -msep-data
Move it to arch/m68k/config.mk

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Jason Jin <Jason.jin@freescale.com>

arch/m68k/config.mk

@@ -11,5 +11,6 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x20000
 
 PLATFORM_CPPFLAGS += -DCONFIG_M68K -D__M68K__
 PLATFORM_LDFLAGS  += -n
-PLATFORM_RELFLAGS              += -ffunction-sections -fdata-sections
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
 LDFLAGS_FINAL                  += --gc-sections

arch/m68k/cpu/mcf5227x/config.mk

@@ -7,5 +7,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
 PLATFORM_CPPFLAGS += -mcpu=52277 -fPIC

arch/m68k/cpu/mcf523x/config.mk

@@ -7,5 +7,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
 PLATFORM_CPPFLAGS += -mcpu=5235 -fPIC

arch/m68k/cpu/mcf52x2/config.mk

@@ -7,8 +7,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-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))

arch/m68k/cpu/mcf532x/config.mk

@@ -7,8 +7,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-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))

arch/m68k/cpu/mcf5445x/config.mk

@@ -9,8 +9,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-
 cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
 is5441x:=$(shell grep CONFIG_MCF5441x $(TOPDIR)/include/$(cfg))
 

arch/m68k/cpu/mcf547x_8x/config.mk

@@ -7,7 +7,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
 PLATFORM_CPPFLAGS += -mcpu=5485 -fPIC
 
 ifneq (,$(findstring -linux-,$(shell $(CC) --version)))