Revision 312677

MFC r312341:
  Initialize IPFW static rules rmlock with RM_RECURSE flag.

  This lock was replaced from rwlock in r272840. But unlike rwlock, rmlock
  doesn't allow recursion on rm_rlock(), so at this time fix this with
  RM_RECURSE flag. Later we need to change ipfw to avoid such recursions.

  PR:		216171