arm64: tegra: Add missing alias for NVIDIA IGX Orin

The following error is seen on boot for the NVIDIA IGX Orin platform ...

 serial-tegra 3100000.serial: failed to get alias id, errno -19

Fix this by populating the necessary alias for the serial device.

Fixes: c95711d7 ("arm64: tegra: Add support for IGX Orin")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

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

@@ -12,6 +12,7 @@ / {
 
 	aliases {
 		serial0 = &tcu;
+		serial1 = &uarta;
 	};
 
 	chosen {