ARM: dts: exynos: Add G3D power domain to Exynos542x

Add a power domain for G3D/Mali device present in Exynos542x/5800 SoCs.
Node for the Mali device will be added by a separate patch.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos5420.dtsi

@@ -294,6 +294,13 @@ mfc_pd: power-domain@10044060 {
 			label = "MFC";
 		};
 
+		g3d_pd: power-domain@10044080 {
+			compatible = "samsung,exynos4210-pd";
+			reg = <0x10044080 0x20>;
+			#power-domain-cells = <0>;
+			label = "G3D";
+		};
+
 		disp_pd: power-domain@100440c0 {
 			compatible = "samsung,exynos4210-pd";
 			reg = <0x100440C0 0x20>;