[TSan][MIPS] XFAIL long jump tests for MIPS64

Mark longjmp tests as XFAIL because longjmp assembly for mips is not yet implemented.

Reviewers: dsanders, dvyukov, samsonov
Subscribers: llvm-commits, mohit.bhakkad, jaydeep
Differential Revision: http://reviews.llvm.org/D9526

llvm-svn: 236847