phy: qcom-qmp: move PCIE QHP registers to separate header

Move PCIE QHP registers to the separate header. QHP is a sepecial PHY
kind used on sdm845 to drive one of PCIe links.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220705094320.1313312-18-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>