dt-bindings: usb: renesas,usbhs: Document RZ/V2L bindings

Document RZ/V2L (R9A07G054) SoC bindings. USBHS block is identical to one
found on RZ/A2 SoC. No driver changes are required as generic compatible
string "renesas,rza2-usbhs" will be used as a fallback.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220227231531.32279-1-prabhakar.mahadev-lad.rj@bp.renesas.com

Documentation/devicetree/bindings/usb/renesas,usbhs.yaml

@@ -20,6 +20,7 @@ properties:
           - enum:
               - renesas,usbhs-r7s9210   # RZ/A2
               - renesas,usbhs-r9a07g044 # RZ/G2{L,LC}
+              - renesas,usbhs-r9a07g054 # RZ/V2L
           - const: renesas,rza2-usbhs
 
       - items:
@@ -116,7 +117,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: renesas,usbhs-r9a07g044
+            enum:
+              - renesas,usbhs-r9a07g044
+              - renesas,usbhs-r9a07g054
     then:
       properties:
         interrupts: