ARM: dts: imx53: add srtc node

rtc-mxc_v2 driver will add support for the i.MX53 SRTC

Note: we keep the 'srtc' label to avoid duplicate with imx53-m53.dtsi
Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx53.dtsi

@@ -441,6 +441,13 @@ gpt: timer@53fa0000 {
 				clock-names = "ipg", "per";
 			};
 
+			srtc: rtc@53fa4000 {
+				compatible = "fsl,imx53-rtc";
+				reg = <0x53fa4000 0x4000>;
+				interrupts = <24>;
+				clocks = <&clks IMX5_CLK_SRTC_GATE>;
+			};
+
 			iomuxc: iomuxc@53fa8000 {
 				compatible = "fsl,imx53-iomuxc";
 				reg = <0x53fa8000 0x4000>;