[BOLT] Change mutex implementation

Changed acquire implemetaion to __atomic_test_and_set() and release
to __atomic_clear() so it eliminates inline asm usage and is arch
independent.

Elvina Yakubova,
Advanced Software Technology Lab, Huawei

Reviewers: yota9, maksfb, rafauler

Differential Revision: https://reviews.llvm.org/D129162