ARM: dts: k3-j7200: Add wkup gpio node

Add wkup_gpio0 node required for detecting whether board mux is set
HyperFlash.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
diff --git a/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi b/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
index 4bcb65a..d590079 100644
--- a/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm/dts/k3-j7200-mcu-wakeup.dtsi
@@ -114,4 +114,16 @@
 		clocks = <&k3_clks 195 1>;
 		power-domains = <&k3_pds 195 TI_SCI_PD_EXCLUSIVE>;
 	};
+
+	wkup_gpio0: gpio@42110000 {
+		compatible = "ti,j721e-gpio", "ti,keystone-gpio";
+		reg = <0x0 0x42110000 0x0 0x100>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		ti,ngpio = <84>;
+		ti,davinci-gpio-unbanked = <0>;
+		power-domains = <&k3_pds 113 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 113 0>;
+		clock-names = "gpio";
+	};
 };