Merge tag 'u-boot-rockchip-20240507' of https://source.denx.de/u-boot/custodians/u-boot-rockchip

CI: https://source.denx.de/u-boot/custodians/u-boot-rockchip/-/pipelines/20628

- migrate to use OF_UPSTREAM for rv1108, rk3308, rk3328, rk356x, rk3588;