The X1E80100 has two SDHC controllers (called SDC2 and SDC4).
Describe both of them and enable the SDC2 on QCP. This brings
SD card support for the microSD port on QCP.

The SDC4 is described but there is no device outthere yet that makes
use of it, AFAIK.

Didn't include the SDC4 pins yet because there are some bindings
errors that need to be addressed, and since there is no HW that
actually uses it, we can describe them at a later stage.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
Abel Vesa (4):
      dt-bindings: mmc: sdhci-msm: Document the X1E80100 SDHCI Controller
      arm64: dts: qcom: x1e80100: Describe the SDHC controllers
      arm64: dts: qcom: x1e80100: Describe TLMM pins for SDC2
      arm64: dts: qcom: x1e80100-qcp: Enable SD card support

 .../devicetree/bindings/mmc/sdhci-msm.yaml         |   1 +
 arch/arm64/boot/dts/qcom/x1e80100-qcp.dts          |  20 +++
 arch/arm64/boot/dts/qcom/x1e80100.dtsi             | 148 +++++++++++++++++++++
 3 files changed, 169 insertions(+)
---
base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75
change-id: 20241007-x1e80100-qcp-sdhc-15c716dad946

Best regards,
-- 
Abel Vesa <abel.vesa@linaro.org>