kernel: bump 6.6 to 6.6.82

kernel: bump 6.6 to 6.6.82

Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.82

All patches automatically rebased.

Added CONFIG_MICROCODE_INITRD32=y to x86: config-6.6[1]

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/arch/x86/Kconfig?id=v6.6.82&id2=v6.6.81

Build system: x86/64
Build-tested: bcm27xx/bcm2712
Run-tested: bcm27xx/bcm2712

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/18188
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>