global: Migrate CONFIG_EXTRA_ENV_SETTINGS to CFG

Perform a simple rename of CONFIG_EXTRA_ENV_SETTINGS to CFG_EXTRA_ENV_SETTINGS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/MPC8548CDS.h b/include/configs/MPC8548CDS.h
index 1e3ba6d..6f3e298 100644
--- a/include/configs/MPC8548CDS.h
+++ b/include/configs/MPC8548CDS.h
@@ -291,7 +291,7 @@
  * Environment Configuration
  */
 
-#define	CONFIG_EXTRA_ENV_SETTINGS		\
+#define	CFG_EXTRA_ENV_SETTINGS		\
 	"hwconfig=fsl_ddr:ecc=off\0"		\
 	"netdev=eth0\0"				\
 	"uboot=" CONFIG_UBOOTPATH "\0"	\