dt-bindings: PCI: qcom: Document the IPQ5332 PCIe controller

Document the PCIe controller on IPQ5332 platform. IPQ5332 will use
IPQ9574 as the compatible fallback in the future.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/20250220094251.230936-6-quic_varada@quicinc.com
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

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

@@ -33,6 +33,7 @@ properties:
           - qcom,pcie-sdx55
       - items:
           - enum:
+              - qcom,pcie-ipq5332
               - qcom,pcie-ipq5424
           - const: qcom,pcie-ipq9574
       - items:
@@ -49,11 +50,11 @@ properties:
 
   interrupts:
     minItems: 1
-    maxItems: 8
+    maxItems: 9
 
   interrupt-names:
     minItems: 1
-    maxItems: 8
+    maxItems: 9
 
   iommu-map:
     minItems: 1
@@ -443,6 +444,7 @@ allOf:
         interrupts:
           minItems: 8
         interrupt-names:
+          minItems: 8
           items:
             - const: msi0
             - const: msi1
@@ -452,6 +454,7 @@ allOf:
             - const: msi5
             - const: msi6
             - const: msi7
+            - const: global
 
   - if:
       properties:
@@ -599,6 +602,7 @@ allOf:
         - properties:
             interrupts:
               minItems: 8
+              maxItems: 8
             interrupt-names:
               items:
                 - const: msi0