Fixed HDMI console, support cross build

$ sha256sum nixos-sd-image-22.11.20221014.4428e23-riscv64-linux.img.zst
0cc0d9dba1c244f98f9ef98abca771d0d0bcaa70af7d163707fe9cf35e4abedd  nixos-sd-image-22.11.20221014.4428e23-riscv64-linux.img.zst

Fixed Nix sandbox, updated kernel to 5.18

$ sha256sum nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst
76ffedc69264051f6dbf5fa62759c4a839a262e0074e10cce806ff052a472fbb  nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst

$ zstdcat nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst | sudo dd of=/dev/mmcblk0 status=progress

Added RTL8723DS driver

$ sha256sum nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst
63021ecb52d6e858fbb8f21a3d06c0120be4fecbe471a7fe98bfaac3b5e3de0f  nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst

$ zstdcat nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst | sudo dd of=/dev/mmcblk0 status=progress

Boots successfully on LicheeRV Dock

$ sha256sum nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst 
f4576608a3b51634da4b4b23e81e31022a4d7452bf2dcf298bba4d47fee0704c  nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst

$ zstdcat nixos-sd-image-22.05.20220308.4eb954f-riscv64-linux.img.zst | sudo dd of=/dev/mmcblk0 status=progress
6587144+0 records in
6587144+0 records out
3372617728 bytes (3.4 GB, 3.1 GiB) copied, 925.989 s, 3.6 MB/s