ARM: dts: imx6ul-[geam|isiot]: Add sai2 node

Add Synchronous Audio Interface(SAI) node for Engicam GEAM6UL
and Is.IoT MX6UL variant module boards.

Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul-geam.dtsi

@@ -172,6 +172,12 @@
 	xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
 };
 
+&sai2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai2>;
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
@@ -328,6 +334,16 @@
 		>;
 	};
 
+	pinctrl_sai2: sai2grp {
+		fsl,pins = <
+			MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA	0x130b0
+			MX6UL_PAD_JTAG_TMS__CCM_CLKO1		0x4001b031
+			MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK	0x17088
+			MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC	0x17088
+			MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA	0x120b0
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1

arch/arm/boot/dts/imx6ul-isiot.dtsi

@@ -91,6 +91,12 @@
 	status = "okay";
 };
 
+&sai2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai2>;
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
@@ -129,6 +135,16 @@
 		>;
 	};
 
+	pinctrl_sai2: sai2grp {
+		fsl,pins = <
+			MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA	0x130b0
+			MX6UL_PAD_JTAG_TMS__CCM_CLKO1		0x4001b031
+			MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK	0x17088
+			MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC	0x17088
+			MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA	0x120b0
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1