arm64: dts: mediatek: mt8167: add mmsys node

Add node for MMSYS.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Link: https://lore.kernel.org/r/20210405200821.2203458-1-fparent@baylibre.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8167.dtsi

@@ -125,5 +125,11 @@ pio: pinctrl@1000b000 {
 			#interrupt-cells = <2>;
 			interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
 		};
+
+		mmsys: mmsys@14000000 {
+			compatible = "mediatek,mt8167-mmsys", "syscon";
+			reg = <0 0x14000000 0 0x1000>;
+			#clock-cells = <1>;
+		};
 	};
 };