arm64: dts: exynos: Rename Multi Core Timer node to "timer" on Exynos5433

The device node name should reflect generic class of a device so rename
the Multi Core Timer node from "mct" to "timer".  This will be also in
sync with upcoming DT schema.  No functional change.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm64/boot/dts/exynos/exynos5433.dtsi

@@ -703,7 +703,7 @@ tmu_isp: tmu@1007c000 {
 			status = "disabled";
 		};
 
-		mct@101c0000 {
+		timer@101c0000 {
 			compatible = "samsung,exynos4210-mct";
 			reg = <0x101c0000 0x800>;
 			interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,