phy: qcom-qmp: fix PCIe PHY support

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

Fixes: da07a06b ("phy: qcom-qmp-pcie: drop support for non-PCIe PHY types")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220610185542.3662484-3-dmitry.baryshkov@linaro.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>