kernel: bump 5.15 to 5.15.139

kernel: bump 5.15 to 5.15.139

Changelog: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.139

Removed upstreamed:
	backport-5.15/830-v6.6-2-leds-turris-omnia-Drop-unnecessary-mutex-locking.patch[1]
	backport-5.15/830-v6.7-1-leds-turris-omnia-Do-not-use-SMBUS-calls.patch[2]
	x86/patches-5.15/120-hwrng-geode-fix-accessing-registers.patch[3]

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.139&id=aec3706971b332af8321b2beccba981b8061489a
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.139&id=893eedf596dd81c7a7f0cd80b345956ae000eab9
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.139&id=a5c83c8043d70b9a28d1bd78a2dbbab340f43889

Build system: x86_64
Build-tested: ramips/tplink_archer-a6-v3
Run-tested: ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>