sunxi: video: Allow external DACs for VGA on platforms without TV encoders

Using an external DAC for VGA output was available on sun5i. Since
some other SoCs don't have a builtin TV encoder, but might have
use for a VGA output, enable the option for the platforms that
don't have TV encoders.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>

board/sunxi/Kconfig

@@ -307,7 +307,7 @@ config VIDEO_VGA
 
 config VIDEO_VGA_VIA_LCD
 	boolean "VGA via LCD controller support"
-	depends on VIDEO && MACH_SUN5I
+	depends on VIDEO && (MACH_SUN5I || MACH_SUN6I || MACH_SUN8I)
 	default n
 	---help---
 	Say Y here to add support for external DACs connected to the parallel