dt-bindings: phy-qcom-qmp: Add SDM845 PCIe to binding

Add the compatible and define necessary clocks and resets for the SDM845
GEN2 QMP PCIe phy and GEN3 QHP PCIe phy.

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>