regulator: uniphier: Add binding for NX1 SoC

Update USB-VBUS binding document for UniPhier NX1 SoC.

Signed-off-by: Kunihiko Hayashi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: khayash1

Documentation/devicetree/bindings/regulator/socionext,uniphier-regulator.yaml

@@ -27,6 +27,7 @@ properties:
       - socionext,uniphier-pxs2-usb3-regulator
       - socionext,uniphier-ld20-usb3-regulator
       - socionext,uniphier-pxs3-usb3-regulator
+      - socionext,uniphier-nx1-usb3-regulator
 
   reg:
     maxItems: 1