video: extend stdout video console work-around for 'vga'

cfb_console driver uses 'vga' console name and we still have board
environments defining this name. Re-use existing DM_VIDEO work-
around for console name to support 'vga' name in stdout environment.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Soeren Moch <smoch@web.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index aaea7ce..01e8dbf 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -177,14 +177,16 @@
 source "drivers/video/fonts/Kconfig"
 
 config VIDCONSOLE_AS_LCD
-	bool "Use 'vidconsole' when 'lcd' is seen in stdout"
+	string "Use 'vidconsole' when string defined here is seen in stdout"
 	depends on DM_VIDEO
+	default "lcd" if LCD || TEGRA_COMMON
+	default "vga" if !LCD
 	help
-	  This is a work-around for boards which have 'lcd' in their stdout
-	  environment variable, but have moved to use driver model for video.
-	  In this case the console will no-longer work. While it is possible
-	  to update the environment, the breakage may be confusing for users.
-	  This option will be removed around the end of 2016.
+	  This is a work-around for boards which have 'lcd' or 'vga' in their
+	  stdout environment variable, but have moved to use driver model for
+	  video. In this case the console will no-longer work. While it is
+	  possible to update the environment, the breakage may be confusing for
+	  users. This option will be removed around the end of 2020.
 
 config VIDEO_COREBOOT
 	bool "Enable coreboot framebuffer driver support"