arm64: dts: imx93-11x11-frdm: Add MQS audio support

Enable Medium Quality Sound (MQS) output on the i.MX93 FRDM 11x11 board
by adding sound card description and enabling sai1 and mqs1 dts nodes,
together with necessary clocks and pinmux.

This supports audio playback via SAI1 DAI which is connected to the MQS1
block.

Co-developed-by: Tom Zheng <haidong.zheng@nxp.com>
Signed-off-by: Tom Zheng <haidong.zheng@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Tested-by: Francesco Valla <francesco@valla.it>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: dbaluta

arch/arm64/boot/dts/freescale/imx93-11x11-frdm.dts

@@ -81,6 +81,13 @@
 			no-map;
 		};
 	};
+
+	sound-mqs {
+		compatible = "fsl,imx-audio-mqs";
+		model = "mqs-audio";
+		audio-cpu = <&sai1>;
+		audio-codec = <&mqs1>;
+	};
 };
 
 &adc1 {
@@ -315,6 +322,27 @@
 	status = "okay";
 };
 
+&mqs1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_mqs1>;
+	clocks = <&clk IMX93_CLK_MQS1_GATE>;
+	clock-names = "mclk";
+	status = "okay";
+};
+
+&sai1 {
+	#sound-dai-cells = <0>;
+	clocks = <&clk IMX93_CLK_SAI1_IPG>, <&clk IMX93_CLK_DUMMY>,
+		 <&clk IMX93_CLK_SAI1_GATE>, <&clk IMX93_CLK_DUMMY>,
+		 <&clk IMX93_CLK_DUMMY>, <&clk IMX93_CLK_AUDIO_PLL>;
+	clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3", "pll8k";
+	assigned-clocks = <&clk IMX93_CLK_SAI1>;
+	assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
+	assigned-clock-rates = <24576000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
 &usbotg1 {
 	adp-disable;
 	disable-over-current;
@@ -479,6 +507,13 @@
 		>;
 	};
 
+	pinctrl_mqs1: mqs1grp {
+		fsl,pins = <
+			MX93_PAD_PDM_CLK__MQS1_LEFT		0x31e
+			MX93_PAD_PDM_BIT_STREAM0__MQS1_RIGHT	0x31e
+		>;
+	};
+
 	pinctrl_pcal6524: pcal6524grp {
 		fsl,pins = <
 			MX93_PAD_CCM_CLKO2__GPIO3_IO27			0x31e