arm64: tegra: Add interrupt for memory controller on Tegra186

The memory controller can be interrupted by certain conditions. Add the
interrupt to the device tree node to allow drivers to trap these
conditions.

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

arch/arm64/boot/dts/nvidia/tegra186.dtsi

@@ -142,6 +142,7 @@
 	memory-controller@2c00000 {
 		compatible = "nvidia,tegra186-mc";
 		reg = <0x0 0x02c00000 0x0 0xb0000>;
+		interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};