arm64: dts: imx93: Configure clock rate for audio PLL

Configure clock rate for audio PLL. There's one audio PLL on i.MX93. It
is used as parent clock for clocks that are multiple of 8kHz.
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx93.dtsi

@@ -420,6 +420,8 @@ clk: clock-controller@44450000 {
 				#clock-cells = <1>;
 				clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>;
 				clock-names = "osc_32k", "osc_24m", "clk_ext1";
+				assigned-clocks = <&clk IMX93_CLK_AUDIO_PLL>;
+				assigned-clock-rates = <393216000>;
 				status = "okay";
 			};