s3-winbind Move winbind privileged socket dir into state_path()

s3-winbind Move winbind privileged socket dir into state_path()

On default installs, this will be the same as the old lock_path(), but
lock_path() is now a directory that can safely be mapped to /var/locks
and removed by the OS on reboot.  It is important that the directory
permissions of this directory be preserved, as they may be customised.

Andrew Bartlett