ARM: dts: imx27: Add kpp devicetree node

This patch adds the missing (Keypad Port) KPP devicetree node
for i.MX27 CPUs.
Signed-off-by: NAlexander Shiyan <eagle.alexander923@gmail.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx27.dtsi

@@ -110,6 +110,14 @@
 				clock-names = "ipg", "per";
 			};
 
+			kpp: kpp@10008000 {
+				compatible = "fsl,imx27-kpp", "fsl,imx21-kpp";
+				reg = <0x10008000 0x1000>;
+				interrupts = <21>;
+				clocks = <&clks 37>;
+				status = "disabled";
+			};
+
 			uart1: serial@1000a000 {
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1000a000 0x1000>;