The IMX8MP_CLK_AUDIO_AXI_DIV is not registered anymore,
so use the IMX8MP_CLK_AUDIO_AXI instead.
Fixes: 39da71054884ec196a31d94 ("LF-1285 arm64: dts: freescale: Add the power domain node on imx8mp") Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>