ARM: dts: sun8i-a33: sina33: Add missing panel power supply

The SinA33 panel is missing its power-supply property, even though the
binding mandates it.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://lore.kernel.org/r/20210114113538.1233933-15-maxime@cerno.tech

arch/arm/boot/dts/sun8i-a33-sinlinx-sina33.dts

@@ -63,6 +63,7 @@ chosen {
 
 	panel {
 		compatible = "netron-dy,e231732";
+		power-supply = <&reg_vcc3v3>;
 
 		port {
 			panel_input: endpoint {