dt-bindings: usb: renesas,usbhs: Document RZ/G2UL bindings

Document RZ/G2ULSoC 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.

While at it, make the resets property required on RZ/{G2L,G2UL,V2L} SoC.

Reviewed-by: Geert Uytterhoeven <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Biju Das <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

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

···
       - items:
           - enum:
               - renesas,usbhs-r7s9210   # RZ/A2
+              - renesas,usbhs-r9a07g043 # RZ/G2UL
               - renesas,usbhs-r9a07g044 # RZ/G2{L,LC}
               - renesas,usbhs-r9a07g054 # RZ/V2L
           - const: renesas,rza2-usbhs
···
         compatible:
           contains:
             enum:
+              - renesas,usbhs-r9a07g043
               - renesas,usbhs-r9a07g044
               - renesas,usbhs-r9a07g054
     then:
···
             - description: U2P_INT_DMA[0]
             - description: U2P_INT_DMA[1]
             - description: U2P_INT_DMAERR
+      required:
+        - resets
     else:
       properties:
         interrupts: