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/topic_miami.h b/include/configs/topic_miami.h
index 83abaed..3795e61 100644
--- a/include/configs/topic_miami.h
+++ b/include/configs/topic_miami.h
@@ -44,8 +44,8 @@
 # define EXTRA_ENV_USB
 #endif
 
-#undef CONFIG_EXTRA_ENV_SETTINGS
-#define CONFIG_EXTRA_ENV_SETTINGS	\
+#undef CFG_EXTRA_ENV_SETTINGS
+#define CFG_EXTRA_ENV_SETTINGS	\
 	"kernel_image=uImage\0"	\
 	"kernel_addr=0x2080000\0" \
 	"ramdisk_image=uramdisk.image.gz\0"	\