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/MCR3000.h b/include/configs/MCR3000.h
index f836882..c6929c1 100644
--- a/include/configs/MCR3000.h
+++ b/include/configs/MCR3000.h
@@ -9,7 +9,7 @@
 
 /* High Level Configuration Options */
 
-#define CONFIG_EXTRA_ENV_SETTINGS					\
+#define CFG_EXTRA_ENV_SETTINGS					\
 	"sdram_type=SDRAM\0"						\
 	"flash_type=AM29LV160DB\0"					\
 	"loadaddr=0x400000\0"						\