ARM: dts: imx7s: enable ocotp

Enable ocotp for i.mx7D/S.
Correct the clock entry and compatible string.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx7s.dtsi

@@ -493,10 +493,9 @@
 			};
 
 			ocotp: ocotp-ctrl@30350000 {
-				compatible = "syscon";
+				compatible = "fsl,imx7d-ocotp", "syscon";
 				reg = <0x30350000 0x10000>;
-				clocks = <&clks IMX7D_CLK_DUMMY>;
-				status = "disabled";
+				clocks = <&clks IMX7D_OCOTP_CLK>;
 			};
 
 			anatop: anatop@30360000 {