main/postmarketos-base: depend on postmarketos-mkinitfs>=1.5.1-r5 (MR 3791)
Related: discussion in https://gitlab.com/postmarketOS/pmaports/-/merge_requests/3791#note_1254944160
Related: discussion in https://gitlab.com/postmarketOS/pmaports/-/merge_requests/3791#note_1254944160