* Split locks.cpp into mutex.cpp, recursive_lock.cpp, and rw_lock.cpp (new
subdirectory locks/).
* runtime_loader no longer includes the rw_lock, allowing removal of the TLS
dependency again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34364 a95241bf-73f2-0310-859d-f6bbb57e9c96