kernel: bump 5.15 to 5.15.136

kernel: bump 5.15 to 5.15.136

Changelog: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.136

Removed bcm53xx patch backported from 5.15.136:
	target/linux/bcm53xx/patches-5.15/081-xhci-Keep-interrupt-disabled-in-initialization-until.patch [1]

All other patches automatically rebased.

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

1. https://github.com/openwrt/openwrt/pull/13751#issuecomment-1781206937

Signed-off-by: John Audia <therealgraysky@proton.me>
[rmilecki: updated commit description & tested on Luxul XWR-3150]
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>