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/mx53cx9020.h b/include/configs/mx53cx9020.h
index cd806cb..baffe65 100644
--- a/include/configs/mx53cx9020.h
+++ b/include/configs/mx53cx9020.h
@@ -37,7 +37,7 @@
 
 #include <config_distro_bootcmd.h>
 
-#define CONFIG_EXTRA_ENV_SETTINGS \
+#define CFG_EXTRA_ENV_SETTINGS \
 	"fdt_addr_r=0x75000000\0" \
 	"pxefile_addr_r=0x73000000\0" \
 	"scriptaddr=0x74000000\0" \