arm: dts: khadas-vim3: include meson-g12-common-u-boot.dtsi to enable HDMI output

Include the common g12 u-boot tweaks to permit enabling video output tweaks
on Khadas VIM3 boards.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/arch/arm/dts/meson-khadas-vim3-u-boot.dtsi b/arch/arm/dts/meson-khadas-vim3-u-boot.dtsi
index 81fd5be..b5da4fd 100644
--- a/arch/arm/dts/meson-khadas-vim3-u-boot.dtsi
+++ b/arch/arm/dts/meson-khadas-vim3-u-boot.dtsi
@@ -4,6 +4,8 @@
  * Author: Neil Armstrong <narmstrong@baylibre.com>
  */
 
+#include "meson-g12-common-u-boot.dtsi"
+
 / {
 	aliases {
 		spi0 = &spifc;