message: Partial revert of [OMPT] Rename ompt_mutex_impl_t to kmp_mutex_impl
  The previous commit did not revert all replaced ompt_mutex_impl_unknown.
diff: @@ -1264,7 +1264,7 @@ __ompt_get_mutex_impl_type(void *user_lock, kmp_indirect_lock_t *ilock = 0) {
  return kmp_mutex_impl_speculative;
  #endif
  default:
  - return kmp_mutex_impl_unknown;
  + return ompt_mutex_impl_unknown;
  }
  ilock = KMP_LOOKUP_I_LOCK(user_lock);
  }
  @@ -1288,7 +1288,7 @@ __ompt_get_mutex_impl_type(void *user_lock, kmp_indirect_lock_t *ilock = 0) {
  case locktag_nested_drdpa:
  return kmp_mutex_impl_queuing;
  default:
  - return kmp_mutex_impl_unknown;
  + return ompt_mutex_impl_unknown;
  }
  }
  @@ -1311,7 +1311,7 @@ static kmp_mutex_impl_t __ompt_get_mutex_impl_type() {
  return kmp_mutex_impl_speculative;
  #endif
  default:
  - return kmp_mutex_impl_unknown;
  + return ompt_mutex_impl_unknown;
  }
  }
  #endif
  