bl1 is embedded at 0x200 (512), but the GPT header uses roughly the first 0x500 bytes, and hence bl1 overwrites part of the GPT header. Fix issue by changing to msdos partition type. Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6442
The file is automatically packed by devicepkg-dev utils Relates #1836