clk: imx: clk-audiomix: Correct parent clock for earc_phy and audpll

clk: imx: clk-audiomix: Correct parent clock for earc_phy and audpll

According to Reference Manual of i.MX8MP
The parent clock of "earc_phy" is "sai_pll_out_div2",
The parent clock of "audpll" is "osc_24m".

Add CLK_GATE_PARENT() macro for usage of specifying parent clock.

Fixes: 6cd95f7b151c ("clk: imx: imx8mp: Add audiomix block control")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1718350923-21392-6-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>