regulator: uniphier: Add USB-VBUS compatible string for NX1 SoC

Add basic support for UniPhier NX1 SoC. This includes a compatible string
and the same SoC-dependent data as PXs2 SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1634520605-16583-3-git-send-email-hayashi.kunihiko@socionext.com


Signed-off-by: Mark Brown <broonie@kernel.org>