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/amcore.h b/include/configs/amcore.h
index ca29346..648d30a 100644
--- a/include/configs/amcore.h
+++ b/include/configs/amcore.h
@@ -10,7 +10,7 @@
 
 #define CFG_SYS_UART_PORT		0
 
-#define CONFIG_EXTRA_ENV_SETTINGS				\
+#define CFG_EXTRA_ENV_SETTINGS				\
 	"upgrade_uboot=loady; "					\
 		"protect off 0xffc00000 0xffc1ffff; "		\
 		"erase 0xffc00000 0xffc1ffff; "			\