tsan: support linker init flag in __tsan_mutex_destroy

For a linker init mutex with lazy flag setup
(no __tsan_mutex_create call), it is possible that
no lock/unlock happened before the destroy call.
Then when destroy runs we still don't know that
it is a linker init mutex and will emulate a memory write.
This in turn can lead to false positives as the mutex
is in fact linker initialized.

Support linker init flag in destroy annotation to resolve this.

llvm-svn: 301795