arm64: dts: imx93: Fix the micfil clock-names entries

fsl,micfil.yaml defines the clock-names in the following sequence:

  clock-names:
    items:
      - const: ipg_clk
      - const: ipg_clk_app
      - const: pll8k
      - const: pll11k
      - const: clkext3
    minItems: 2

imx93.dtsi currently misses the 'pll11k' entry and jump to 'clkext3'.

This leads to the following dt-schema warning:

imx93-11x11-evk.dtb: micfil@44520000: clock-names:3: 'pll11k' was expected
	from schema $id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#

Fix the warning by describing the clocks up to 'pll8k' as 'clkext3'
is assigned to a dummy clock.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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

@@ -497,10 +497,8 @@ micfil: micfil@44520000 {
 					     <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clk IMX93_CLK_PDM_IPG>,
 					 <&clk IMX93_CLK_PDM_GATE>,
-					 <&clk IMX93_CLK_AUDIO_PLL>,
-					 <&clk IMX93_CLK_DUMMY>;
-				clock-names = "ipg_clk", "ipg_clk_app",
-					      "pll8k", "clkext3";
+					 <&clk IMX93_CLK_AUDIO_PLL>;
+				clock-names = "ipg_clk", "ipg_clk_app", "pll8k";
 				dmas = <&edma1 29 0 5>;
 				dma-names = "rx";
 				status = "disabled";