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/mx6sllevk.h b/include/configs/mx6sllevk.h
index 8731f6a..cf4871c 100644
--- a/include/configs/mx6sllevk.h
+++ b/include/configs/mx6sllevk.h
@@ -12,7 +12,7 @@
 
 #define CONFIG_MXC_UART_BASE		UART1_BASE
 
-#define CONFIG_EXTRA_ENV_SETTINGS \
+#define CFG_EXTRA_ENV_SETTINGS \
 	"epdc_waveform=epdc_splash.bin\0" \
 	"script=boot.scr\0" \
 	"image=zImage\0" \