media: dt-bindings: qcom,msm8996-venus: document interconnects

Venus on Qualcomm MSM8996 defines interconnects:

apq8096-db820c.dtb: video-codec@c00000: Unevaluated properties are not allowed ('interconnect-names', 'interconnects' were unexpected)

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/devicetree/bindings/media/qcom,msm8996-venus.yaml

···
       - const: bus
       - const: mbus
 
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: video-mem
+      - const: cpu-cfg
+
   iommus:
     maxItems: 20