spi: Add sc7180 binding

Add device tree compatible for sc7180 SoC.
Signed-off-by: Rajesh Patil <rajpat@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/1632997450-32293-2-git-send-email-rajpat@codeaurora.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml

@@ -22,6 +22,7 @@ properties:
   compatible:
     items:
       - enum:
+          - qcom,sc7180-qspi
           - qcom,sc7280-qspi
           - qcom,sdm845-qspi