dt-bindings: interrupt-controller: Add StarFive JH7100 plic

Add compatible string for StarFive JH7100 plic.
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>

Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml

@@ -45,6 +45,7 @@ properties:
     items:
       - enum:
           - sifive,fu540-c000-plic
+          - starfive,jh7100-plic
           - canaan,k210-plic
       - const: sifive,plic-1.0.0