powerpc: mpc5xxx: remove redundant CONFIG_MPC5xxx definition

We do not have to define CONFIG_MPC5xxx in board config headers
(and start.S) because it is defined in arch/powerpc/cpu/mpc5xxx/config.mk.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/include/configs/pcm030.h b/include/configs/pcm030.h
index 5c61889..31a93c8 100644
--- a/include/configs/pcm030.h
+++ b/include/configs/pcm030.h
@@ -20,8 +20,7 @@
 High Level Configuration Options
 (easy to change)
 -----------------------------------------------------------------------------*/
-#define CONFIG_MPC5xxx		1	/* This is an MPC5xxx CPU */
-#define CONFIG_MPC5200		1	/* (more precisely an MPC5200 CPU) */
+#define CONFIG_MPC5200		1	/* This is an MPC5200 CPU */
 #define CONFIG_MPC5200_DDR	1	/* (with DDR-SDRAM) */
 #define CONFIG_PHYCORE_MPC5200B_TINY 1	/* phyCORE-MPC5200B -> */
 					/* FEC configuration and IDE */