dt-bindings: qcom: Add ipq6018 bindings

Document the new ipq6018 SOC/board device tree bindings.

Co-developed-by: Selvam Sathappan Periakaruppan <speriaka@codeaurora.org>
Signed-off-by: Selvam Sathappan Periakaruppan <speriaka@codeaurora.org>
Co-developed-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Link: https://lore.kernel.org/r/1579439601-14810-4-git-send-email-sricharan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Documentation/devicetree/bindings/arm/qcom.yaml

@@ -28,6 +28,7 @@ description: |
         apq8074
         apq8084
         apq8096
+        ipq6018
         ipq8074
         mdm9615
         msm8916
@@ -41,6 +42,7 @@ description: |
   The 'board' element must be one of the following strings:
 
         cdp
+        cp01-c1
         dragonboard
         hk01
         idp
@@ -150,4 +152,10 @@ properties:
           - enum:
               - qcom,sc7180-idp
           - const: qcom,sc7180
+
+      - items:
+          - enum:
+              - qcom,ipq6018-cp01-c1
+          - const: qcom,ipq6018
+
 ...