Drop a big pile of backports.
Add a patch to address absent string formatting error.
Additional fixing of builds with musl.
timers group has been merged upstream into syscalls.
(From OE-Core rev: 7126431cc3512e3d7f55300c561339c87283b605)
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>