arm64: dts: qcom: sm8450: Additionally manage MXC power domain in camcc

arm64: dts: qcom: sm8450: Additionally manage MXC power domain in camcc

Camcc requires both MMCX and MXC rails to be powered ON to configure
the camera PLLs on SM8450 platform. Hence add MXC power domain to
camcc node on SM8450.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Jagadeesh Kona <quic_jkona@quicinc.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250822-topic-sm8x50-upstream-pll-multi-pd-voting-dt-v2-4-28f35728a146@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>