[Bug bootstrap/93548] arm-tune.md and arm-tables.opt should be updated with move-if-changed

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93548

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Won't this invoke it all the time if the timestamp of the generated files is
older than timestamp of the sources from which it is generated?
Which was the reason I've used stamp files in the #c5 patch similarly how we
use it almost everywhere else when using move-if-change?