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/drivers/ddr/fsl/mpc85xx_ddr_gen3.c b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
index 1ed4d50..47339c5 100644
--- a/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
+++ b/drivers/ddr/fsl/mpc85xx_ddr_gen3.c
@@ -33,7 +33,7 @@
 	int timeout;
 #ifdef CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134
 	int timeout_save;
-	volatile ccsr_local_ecm_t *ecm = (void *)CONFIG_SYS_MPC85xx_ECM_ADDR;
+	volatile ccsr_local_ecm_t *ecm = (void *)CFG_SYS_MPC85xx_ECM_ADDR;
 	unsigned int csn_bnds_backup = 0, cs_sa, cs_ea, *csn_bnds_t;
 	int csn = -1;
 #endif