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/brppt2.h b/include/configs/brppt2.h
index 984602c..32d9f50 100644
--- a/include/configs/brppt2.h
+++ b/include/configs/brppt2.h
@@ -24,7 +24,7 @@
 
 /* Environment */
 
-#define CONFIG_EXTRA_ENV_SETTINGS \
+#define CFG_EXTRA_ENV_SETTINGS \
 BUR_COMMON_ENV \
 "cfgaddr=0x106F0000\0" \
 "scraddr=0x10700000\0" \