arm64: tegra: Add DMA properties for Tegra234 UARTA

Adding the missing dmas and dma-names properties which are required
for UARTA when using with the Tegra HSUART driver.

Signed-off-by: Vedant Deshpande <vedantd@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra234.dtsi

@@ -2763,6 +2763,8 @@
 			interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&bpmp TEGRA234_CLK_UARTA>;
 			resets = <&bpmp TEGRA234_RESET_UARTA>;
+			dmas = <&gpcdma 8>, <&gpcdma 8>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};