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/mx6ullevk.h b/include/configs/mx6ullevk.h
index 0e98609..4a27fd2 100644
--- a/include/configs/mx6ullevk.h
+++ b/include/configs/mx6ullevk.h
@@ -24,7 +24,7 @@
 #define CFG_SYS_FSL_USDHC_NUM	2
 #endif
 
-#define CONFIG_EXTRA_ENV_SETTINGS \
+#define CFG_EXTRA_ENV_SETTINGS \
 	"script=boot.scr\0" \
 	"image=zImage\0" \
 	"console=ttymxc0\0" \