global: Migrate CONFIG_STD_DEVICES_SETTINGS to CFG

Perform a simple rename of CONFIG_STD_DEVICES_SETTINGS to CFG_STD_DEVICES_SETTINGS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/dfi-bt700.h b/include/configs/dfi-bt700.h
index d10422b..05389a43 100644
--- a/include/configs/dfi-bt700.h
+++ b/include/configs/dfi-bt700.h
@@ -16,7 +16,7 @@
 /* Use BayTrail internal HS UART which is memory-mapped */
 #endif
 
-#define CONFIG_STD_DEVICES_SETTINGS     "stdin=serial\0" \
+#define CFG_STD_DEVICES_SETTINGS     "stdin=serial\0" \
 					"stdout=serial\0" \
 					"stderr=serial\0"