Tegra124 Nyan and Venice 2 boards were missing the required power-supply
property in their display panel device tree nodes. Add these properties
to fix validation errors.
Signed-off-by: Thierry Reding <treding@nvidia.com>
                        aux-bus {
                                panel: panel {
                                        compatible = "auo,b133xtn01";
+                                       power-supply = <&vdd_3v3_panel>;
                                        backlight = <&backlight>;
                                };
                        };
 
                        aux-bus {
                                panel: panel {
                                        compatible = "samsung,ltn140at29-301";
+                                       power-supply = <&vdd_3v3_panel>;
                                        backlight = <&backlight>;
                                };
                        };
 
                        aux-bus {
                                panel: panel {
                                        compatible = "lg,lp129qe";
+                                       power-supply = <&vdd_3v3_panel>;
                                        backlight = <&backlight>;
                                };
                        };