Add SD Card support for sm8750 SoC, including MTP and QRD boards.

- Changed from v2
    - As suggested by Abel Vesa move the GPIO configuration for SD card
      detection (specifically the pin settings for gpio55) from the
      SoC-level device tree (sm8750.dtsi) to the board-specific device
      tree files.

- Changed from v1
    - As suggested by Konrad Dybcio the patch into separate commits per
      board and did formatting improvements (e.g. aligning < symbols,
      placing each item on a new line).
    - Addressed Konrad Dybcio comment to use SVS_L1 for opp-202000000.

Sarthak Garg (4):
  dt-bindings: mmc: sdhci-msm: Add sm8750 compatible
  arm64: dts: qcom: sm8750: Add SDC2 nodes for sm8750 soc
  arm64: dts: qcom: sm8750-mtp: Add SDC2 node for sm8750 mtp board
  arm64: dts: qcom: sm8750-qrd: Add SDC2 node for sm8750 qrd board

 .../devicetree/bindings/mmc/sdhci-msm.yaml    |  1 +
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts       | 23 ++++++++
 arch/arm64/boot/dts/qcom/sm8750-qrd.dts       | 23 ++++++++
 arch/arm64/boot/dts/qcom/sm8750.dtsi          | 54 +++++++++++++++++++
 4 files changed, 101 insertions(+)

-- 
2.34.1