update to 5.15-rc1, port some patches and update config

Signed-off-by: Dan Johansen <strit@manjaro.org>
1 job for master in 74 minutes and 22 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #5410
bigbuilds aarch64
package

01:14:22

 
Name Stage Failure
failed
package Test
  CC [M]  drivers/net/net_failover.o
AR drivers/net/built-in.a
make: *** [Makefile:1874: drivers] Error 2
==> ERROR: A failure occurred in build().
Aborting...
==> ERROR: Building package [linux-rc] failed.
Cleaning up.

ERROR: Job failed: exit status 1