arm64: dts: imx93: Use IMX93_CLK_SPDIF_IPG as SPDIF IPG clock

arm64: dts: imx93: Use IMX93_CLK_SPDIF_IPG as SPDIF IPG clock

IMX93_CLK_BUS_WAKEUP is not accurate IPG clock, which
missed the clock gate part.

IMX93_CLK_SPDIF_IPG is the correct clock.

Fixes: 1c4a4f7362fd ("arm64: dts: imx93: Add audio device nodes")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Link: https://lore.kernel.org/r/20241119015805.3840606-4-shengjiu.wang@nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>