sunxi: video: Add VGA output support

Add support for VGA directly from the sunxi SoC / display engine.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 5959577..4a6f49f 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -294,9 +294,16 @@
 	---help---
 	Say Y here to add support for outputting video over HDMI.
 
+config VIDEO_VGA
+	boolean "VGA output support"
+	depends on VIDEO && (MACH_SUN4I || MACH_SUN7I)
+	default n
+	---help---
+	Say Y here to add support for outputting video over VGA.
+
 config VIDEO_VGA_VIA_LCD
 	boolean "VGA via LCD controller support"
-	depends on VIDEO
+	depends on VIDEO && MACH_SUN5I
 	default n
 	---help---
 	Say Y here to add support for external DACs connected to the parallel