ARM: dts: imx: add SPI to GW54xx

The GW54xx revision E adds SPI via an off-board connector.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-gw54xx.dtsi

@@ -149,6 +149,14 @@ &clks {
 				 <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
 };
 
+&ecspi2 {
+	fsl,spi-num-chipselects = <1>;
+	cs-gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	status = "okay";
+};
+
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
@@ -499,6 +507,15 @@ MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
 			>;
 		};
 
+		pinctrl_ecspi2: escpi2grp {
+			fsl,pins = <
+				MX6QDL_PAD_EIM_CS0__ECSPI2_SCLK	0x100b1
+				MX6QDL_PAD_EIM_CS1__ECSPI2_MOSI	0x100b1
+				MX6QDL_PAD_EIM_OE__ECSPI2_MISO	0x100b1
+				MX6QDL_PAD_EIM_RW__GPIO2_IO26	0x100b1
+			>;
+		};
+
 		pinctrl_flexcan1: flexcan1grp {
 			fsl,pins = <
 				MX6QDL_PAD_KEY_ROW2__FLEXCAN1_RX	0x1b0b1