kernel: bump 6.12 to 6.12.92

kernel: bump 6.12 to 6.12.92

Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.92

Remove upstreamed patches:
- generic/backport-6.12/216-01-revert-perf-cgroup-update-metric-leader-in-evlist__e.patch[1]
- generic/backport-6.12/216-02-revert-perf-tool_pmu-fix-aggregation-on-duration_tim.patch[2]
- generic/backport-6.12/216-03-revert-perf-python-add-parse_events-function.patch[3]
- generic/backport-6.12/216-04-revert-perf-tool_pmu-factor-tool-events-into-their-o.patch[4]
- ath79/patches-6.12/301-irqchip-irq-ath79-cpu-drop-OF-init-helper.patch[5]

All other patches are automatically refreshed.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.92&id=546fc0fe44797e07dfb17898e019e0b543628f53
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.92&id=9fdca4c4d7eb942e83c81ef0e097303730ef72a6
[3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.92&id=94fc25a1f82aeaf7777478234ad38d90adb9d94f
[4] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.92&id=709575a6ab20da63b2183ec4ac89a8e284ddbc1d
[5] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.92&id=c6211c8832d542d93f4e030e6e6f79c45b219e13
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/23621
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>