dt-bindings: pinctrl: uniphier: Add NX1 pinctrl binding

Update pinctrl binding document for UniPhier NX1 SoC.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1633518606-8298-3-git-send-email-hayashi.kunihiko@socionext.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

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

@@ -24,6 +24,7 @@ properties:
       - socionext,uniphier-ld11-pinctrl
       - socionext,uniphier-ld20-pinctrl
       - socionext,uniphier-pxs3-pinctrl
+      - socionext,uniphier-nx1-pinctrl
 
 required:
   - compatible