dt-bindings: arm: qcom: Add compatible for SA8155p-adp board

SA8155p-adp board is based on Qualcomm Snapdragon sa8155p
SoC which is similar to the sm8150 SoC.

Add support for the same in dt-bindings.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20210615074543.26700-5-bhupesh.sharma@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -36,6 +36,7 @@ description: |
         msm8992
         msm8994
         msm8996
+        sa8155p
         sc7180
         sc7280
         sdm630
@@ -48,6 +49,7 @@ description: |
 
   The 'board' element must be one of the following strings:
 
+        adp
         cdp
         cp01-c1
         dragonboard
@@ -200,6 +202,11 @@ properties:
               - qcom,ipq6018-cp01-c1
           - const: qcom,ipq6018
 
+      - items:
+          - enum:
+              - qcom,sa8155p-adp
+          - const: qcom,sa8155p
+
       - items:
           - enum:
               - qcom,sm8150-mtp