powerpc: mpc85xx: move CONFIG_MPC85xx definition to CPU config.mk
Define CONFIG_MPC85xx in arch/powerpc/cpu/mpc85xx/config.mk
because all target boards with mpc85xx cpu define it.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/powerpc/cpu/mpc85xx/config.mk b/arch/powerpc/cpu/mpc85xx/config.mk
index 72c964c..1470f95 100644
--- a/arch/powerpc/cpu/mpc85xx/config.mk
+++ b/arch/powerpc/cpu/mpc85xx/config.mk
@@ -5,7 +5,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_CPPFLAGS += -Wa,-me500 -msoft-float -mno-string
+PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx -Wa,-me500 -msoft-float -mno-string
# -mspe=yes is needed to have -mno-spe accepted by a buggy GCC;
# see "[PATCH,rs6000] make -mno-spe work as expected" on