arm64: dts: rockchip: use pin constant for reset-gpios on px30-evb

Use rk gpio naming convention into reset-gpios of ov5695 camera

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Link: https://lore.kernel.org/r/20220620161321.1898840-4-tommaso.merciai@amarulasolutions.com


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