[Bug testsuite/84370] Invalid option used in test case gcc.target/powerpc/builtins-3-p9-runnable.c

[carll at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84370

--- Comment #2 from Carl Love <carll at gcc dot gnu.org> ---
I will put together a patch to fix this.