[Bug testsuite/65594] libgomp.graphite/force-parallel-6.c timeout

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65594

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Patch to do so preapproved for trunk, if the testcase is still
auto-parallelized in that case.