arm64: tegra: Add missing reset-names for Tegra HS UART

The device tree bindings for the Tegra high-speed UART require the
reset-names property, so add it whenever the compatible string for the
serial port is overwritten.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra234-p3740-0002+p3701-0008.dts

@@ -22,6 +22,7 @@ chosen {
 	bus@0 {
 		serial@3100000 {
 			compatible = "nvidia,tegra194-hsuart";
+			reset-names = "serial";
 			status = "okay";
 		};