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/librem5.h b/include/configs/librem5.h
index 377e3e7..7417f85 100644
--- a/include/configs/librem5.h
+++ b/include/configs/librem5.h
@@ -62,7 +62,7 @@
 #endif
 
 /* Initial environment variables */
-#define CONFIG_EXTRA_ENV_SETTINGS		\
+#define CFG_EXTRA_ENV_SETTINGS		\
 	"scriptaddr=0x80000000\0" \
 	"pxefile_addr_r=0x80100000\0" \
 	"kernel_addr_r=0x80800000\0" \