dt-bindings: PCI: qcom: Add SC8280XP/SA8540P interconnects

Add the missing SC8280XP/SA8540P "pcie-mem" and "cpu-pcie" interconnect
paths to the bindings.

Link: https://lore.kernel.org/r/20221102090705.23634-2-johan+linaro@kernel.org
Fixes: 76d777ae04 ("dt-bindings: PCI: qcom: Add SC8280XP to binding")
Fixes: 76c4207f40 ("dt-bindings: PCI: qcom: Add SA8540P to binding")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>

Documentation/devicetree/bindings/pci/qcom,pcie.yaml

@@ -62,6 +62,14 @@ properties:
     minItems: 3
     maxItems: 13
 
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: pcie-mem
+      - const: cpu-pcie
+
   resets:
     minItems: 1
     maxItems: 12
@@ -631,6 +639,18 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sa8540p
+              - qcom,pcie-sc8280xp
+    then:
+      required:
+        - interconnects
+        - interconnect-names
+
   - if:
       not:
         properties: