arm64: dts: qcom: sc7280: Add PCIe nodes for IDP board

Enable PCIe controller and PHY for sc7280 IDP board.
Add specific NVMe GPIO entries for SKU1 and SKU2 support.

Signed-off-by: Prasad Malisetty <pmaliset@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1633628923-25047-4-git-send-email-pmaliset@codeaurora.org