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/smartweb.h b/include/configs/smartweb.h
index b988b96..762f614 100644
--- a/include/configs/smartweb.h
+++ b/include/configs/smartweb.h
@@ -73,7 +73,7 @@
  * Predefined environment variables.
  * Usefull to define some easy to use boot commands.
  */
-#define	CONFIG_EXTRA_ENV_SETTINGS					\
+#define	CFG_EXTRA_ENV_SETTINGS					\
 									\
 	"basicargs=console=ttyS0,115200\0"				\
 									\