Arm: dts: msm: Enable mute button for nightfury

gpio-19 configured for nightfury device(evb2)

Change-Id: Iae3c1a9b583afb8a8a58b3ae05dd0445a673b830
Signed-off-by: Madhukar Sandi <msandi@codeaurora.org>

arch/arm64/boot/dts/qcom/qcs403-iot-sku1.dts

@@ -24,6 +24,14 @@
 
 };
 
+&soc {
+	gpio_keys {
+		vol_mute {
+			gpios = <&tlmm 19 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
 &qnand_1 {
 	status = "ok";
 };
@@ -31,3 +39,27 @@
 &qseecom_mem {
 	size = <0 0x400000>;
 };
+
+&tlmm {
+	evb_tlmm_gpio_key{
+		tlmm_gpio_key_active: tlmm_gpio_key_active {
+			mux {
+				pins = "gpio19","gpio52","gpio54","gpio115";
+			};
+
+			config {
+				pins = "gpio19","gpio52","gpio54","gpio115";
+			};
+		};
+
+		tlmm_gpio_key_suspend: tlmm_gpio_key_suspend {
+			mux {
+				pins = "gpio19","gpio52","gpio54","gpio115";
+			};
+
+			config {
+				pins = "gpio19","gpio52","gpio54","gpio115";
+			};
+		};
+	};
+};