powerpc: remove redundant CPU definition
CONFIG_${CPU} is defined by Kconfig.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Stefan Roese <sr@denx.de>
diff --git a/arch/powerpc/cpu/mpc86xx/config.mk b/arch/powerpc/cpu/mpc86xx/config.mk
index 4c7235f..69a0b96 100644
--- a/arch/powerpc/cpu/mpc86xx/config.mk
+++ b/arch/powerpc/cpu/mpc86xx/config.mk
@@ -5,4 +5,4 @@
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx -mstring -maltivec -mabi=altivec -msoft-float
+PLATFORM_CPPFLAGS += -mstring -maltivec -mabi=altivec -msoft-float