Replace init/exit ops with power_on/power_off which should be used for
the PCIe PHYs to fix PHY initialization.

Fixes: f575ac2d ("phy: qcom-qmp-pcie-msm8996: drop support for non-PCIe PHY types")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220610185542.3662484-2-dmitry.baryshkov@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>