ARM: dts: imx6qdl-gw5910: add CC1352 UART

The GW5910-C revision adds a TI CC1352 connected to IMX UART4
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-gw5910.dtsi

@@ -220,6 +220,14 @@ &uart2 {
 	status = "okay";
 };
 
+/* cc1352 */
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
 /* Sterling-LWB Bluetooth */
 &uart4 {
 	pinctrl-names = "default";
@@ -411,6 +419,23 @@ MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA	0x1b0b1
 		>;
 	};
 
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D24__UART3_TX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D25__UART3_RX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D23__UART3_RTS_B		0x1b0b1
+			MX6QDL_PAD_EIM_D31__UART3_CTS_B		0x1b0b1
+			MX6QDL_PAD_EIM_A25__GPIO5_IO02		0x4001b0b1 /* DIO20 */
+			MX6QDL_PAD_DISP0_DAT11__GPIO5_IO05	0x4001b0b1 /* DIO14 */
+			MX6QDL_PAD_DISP0_DAT12__GPIO5_IO06	0x4001b0b1 /* DIO15 */
+			MX6QDL_PAD_DISP0_DAT14__GPIO5_IO08	0x1b0b1 /* TMS */
+			MX6QDL_PAD_DISP0_DAT15__GPIO5_IO09	0x1b0b1 /* TCK */
+			MX6QDL_PAD_DISP0_DAT16__GPIO5_IO10	0x1b0b1 /* TDO */
+			MX6QDL_PAD_DISP0_DAT17__GPIO5_IO11	0x1b0b1 /* TDI */
+			MX6QDL_PAD_DISP0_DAT23__GPIO5_IO17	0x4001b0b1 /* RST# */
+		>;
+	};
+
 	pinctrl_uart4: uart4grp {
 		fsl,pins = <
 			MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA	0x1b0b1