[Bug testsuite/79455] c-c++-common/tsan/race_on_mutex.c fails on powerpcle starting with r244854 (where it was activated)

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79455

--- Comment #5 from seurer at gcc dot gnu.org ---
I was hoping that fixing this on powerpc64 LE would also fix it on BE but the
issue there is slightly different.  See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80551