Draft: Document changes and release 5.15.5pureos2 of linux-librem5
This releases what is already in the archives as linux-next-librem5 as linux-librem5 for all users.
Fixes: #307 (closed) #289 (closed) #339 (closed) #342 (closed) #354 (closed)
this needs to be coordinated with a librem5-base release because the changed camera drivers break the userspace ABI this time.