Merge tag 'u-boot-rockchip-20240426' of https://source.denx.de/u-boot/custodians...

Please pull the updates for rockchip platform:
- dts sync for rk3308;
- sdram: Support getting banks from TPL for rk3568 and rk3588;
- dts and config clean and sync up for rk3568/rk3588;
- Other misc fixes;

CI: https://source.denx.de/u-boot/custodians/u-boot-rockchip/-/pipelines/20543