linux-purism-librem5: Kernel config update caused regression for libcamera
!5310 (merged) unfortunately disabled some configs needed for libcamera:
CONFIG_DMABUF_HEAPS
CONFIG_DMABUF_HEAPS_CMA
See also https://gitlab.com/postmarketOS/pmbootstrap/-/issues/2174#note_1884051439 / !5084 (merged)
cc @alistair23, mind adding them back? :)