config: Drop CONFIG_CONSOLE_DEV

This is not really a config. Rename it to avoid confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
diff --git a/include/configs/zc5601.h b/include/configs/zc5601.h
index 28b9c6b..6ede668 100644
--- a/include/configs/zc5601.h
+++ b/include/configs/zc5601.h
@@ -11,7 +11,7 @@
 
 
 #define CONFIG_MXC_UART_BASE	UART2_BASE
-#define CONFIG_CONSOLE_DEV		"ttymxc1"
+#define CONSOLE_DEV		"ttymxc1"
 #define CONFIG_MMCROOT			"/dev/mmcblk0p1"
 
 #define CONFIG_DEFAULT_FDT_FILE	"imx6q-zc5601.dtb"