- fix bootorder (SD -> NVMe -> eMMC); USB disabled as nonworking with mainline still
- use the DT from rockchip64-6.18 so a single source for both u-boot and kernel
- note: the first (and only) RTL8169 used by u-boot is the port closest to board edge
- boot order: NVMe -> MMC
- GMAC works
- nvme works
- `ums` et al working
- usb3 ports (on carrier board) work
- DT is copy (not symlink) from kernel DT due to NPU nodes
