[Bug target/81616] Update -mtune=generic for the current Intel and AMD processors

[sebastian.peryt at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81616

--- Comment #39 from Sebastian Peryt <sebastian.peryt at intel dot com> ---
I have tested it on SKX with SPEC2006INT and SPEC2017INT and don't see any
regressions.