[Bug driver/106897] driver: support -gz=zstd

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106897

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The hardest part is the configure change I think
gcc_GAS_CHECK_FEATURE([compressed debug sections],