clk: qcom: cpu-8996: support using GPLL0 as SMUX input

In some cases the driver might need using GPLL0 to drive CPU clocks.
Bring it in through the sys_apcs_aux clock.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230113120544.59320-6-dmitry.baryshkov@linaro.org