ARM: dts: add power controller to the Gemini DTS

This adds the Gemini power controller to the SoC DTSI
file.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/gemini.dtsi

@@ -75,6 +75,12 @@
 			#interrupt-cells = <2>;
 		};
 
+		power-controller@4b000000 {
+			compatible = "cortina,gemini-power-controller";
+			reg = <0x4b000000 0x100>;
+			interrupts = <26 IRQ_TYPE_EDGE_RISING>;
+		};
+
 		gpio0: gpio@4d000000 {
 			compatible = "cortina,gemini-gpio";
 			reg = <0x4d000000 0x100>;