dt-bindings: soc: rockchip: add rk3576 vo1-grf syscon

Add rockchip,rk3576-vo1-grf syscon compatible, the vo1-grf is
configured in usbdp phy driver.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/20241017025230.28752-1-frawang.cn@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>