ARM: dts: socfpga: Fix up button mapping on VINING FPGA

Add missing buttons and signals to the VINING FPGA device tree,
so they are presented to the userspace via gpio-keys evdev.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts

@@ -36,21 +36,33 @@ gpio-keys {
 
 		hps_temp0 {
 			label = "BTN_0";			/* TEMP_OS */
-			gpios = <&portc 18 GPIO_ACTIVE_LOW>;	/* HPS_GPIO60 */
+			gpios = <&portc 18 GPIO_ACTIVE_LOW>;	/* HPS_GPI5 */
 			linux,code = <BTN_0>;
 		};
 
 		hps_hkey0 {
-			label = "BTN_1";			/* DIS_PWR */
-			gpios = <&portc 19 GPIO_ACTIVE_LOW>;	/* HPS_GPIO61 */
+			label = "GP_SWITCH";			/* GP_SWITCH */
+			gpios = <&portc 19 GPIO_ACTIVE_LOW>;	/* HPS_GPI6 */
 			linux,code = <BTN_1>;
 		};
 
 		hps_hkey1 {
-			label = "hps_hkey1";			/* POWER_DOWN */
-			gpios = <&portc 20 GPIO_ACTIVE_LOW>;	/* HPS_GPIO62 */
+			label = "RESET_SWITCH";			/* RESET_SWITCH */
+			gpios = <&portc 20 GPIO_ACTIVE_LOW>;	/* HPS_GPI7 */
+			linux,code = <BTN_2>;
+		};
+
+		hps_hkey2 {
+			label = "POWER_DOWN";			/* POWER_DOWN */
+			gpios = <&portc 4 GPIO_ACTIVE_LOW>;	/* HPS_GPIO62 */
 			linux,code = <KEY_POWER>;
 		};
+
+		hps_hkey3 {
+			label = "SENSE";			/* SENSE */
+			gpios = <&porta 9 GPIO_ACTIVE_LOW>;	/* HPS_GPIO9 */
+			linux,code = <BTN_3>;
+		};
 	};
 
 	regulator-usb-nrst {