global: Migrate CONFIG_SYS_MPC8* symbols to the CFG_SYS namespace

Migrate all of COFIG_SYS_MPC* to the CFG_SYS namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
index bf5cac6..7a8f653 100644
--- a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
@@ -35,7 +35,7 @@
 
 void fsl_serdes_init(void)
 {
-	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
+	ccsr_gur_t *gur = (void *)CFG_SYS_MPC85xx_GUTS_ADDR;
 	u32 pordevsr = in_be32(&gur->pordevsr);
 	u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
 				MPC85xx_PORDEVSR_IO_SEL_SHIFT;