ARM: tegra: Add missing panel power supplies

Both Nyan boards as well as Venice2 are missing panel power supplies.
Add them.

Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-nyan-big.dts

@@ -16,6 +16,7 @@
 	panel: panel {
 		compatible = "auo,b133xtn01";
 
+		power-supply = <&vdd_3v3_panel>;
 		backlight = <&backlight>;
 		ddc-i2c-bus = <&dpaux>;
 	};

arch/arm/boot/dts/tegra124-nyan-blaze.dts

@@ -18,6 +18,7 @@
 	panel: panel {
 		compatible = "samsung,ltn140at29-301";
 
+		power-supply = <&vdd_3v3_panel>;
 		backlight = <&backlight>;
 		ddc-i2c-bus = <&dpaux>;
 	};

arch/arm/boot/dts/tegra124-venice2.dts

@@ -1081,7 +1081,7 @@
 
 	panel: panel {
 		compatible = "lg,lp129qe";
-
+		power-supply = <&vdd_3v3_panel>;
 		backlight = <&backlight>;
 		ddc-i2c-bus = <&dpaux>;
 	};