dt-bindings: irqchip: Add node name to PRUSS INTC

The current PRUSS Interrupt Controller binding doesn't exactly specify
the convention for the node name. These interrupt-controllers will always
have a unit address. Update the binding with the '$nodename' using the
expected generic name, this shall ensure the interrupt-controller.yaml
is automatically applied to this binding.

Signed-off-by: Suman Anna <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring <[email protected]>

Author: sumananna

Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml

@@ -33,6 +33,9 @@ description: |
   corresponding PRUSS node. The node should be named "interrupt-controller".
 
 properties:
+  $nodename:
+    pattern: "^interrupt-controller@[0-9a-f]+$"
+
   compatible:
     enum:
       - ti,pruss-intc