5042 stop using deprecated atomic functions

*** 1937,1956 ****
                          mutex_exit(&connp->conn_fanout->connf_lock);
                          goto done;
                  }
                  if (connp->conn_sqp != new_sqp) {
                          while (connp->conn_sqp != new_sqp)
!                                 (void) casptr(&connp->conn_sqp, sqp, new_sqp);
                          /* No special MT issues for outbound ixa_sqp hint */
                          connp->conn_ixa->ixa_sqp = new_sqp;
                  }
  
                  do {
                          conn_flags = connp->conn_flags;
                          conn_flags |= IPCL_FULLY_BOUND;
!                         (void) cas32(&connp->conn_flags, connp->conn_flags,
!                             conn_flags);
                  } while (!(connp->conn_flags & IPCL_FULLY_BOUND));
  
                  mutex_exit(&connp->conn_fanout->connf_lock);
                  mutex_exit(&connp->conn_lock);
  
--- 1937,1957 ----
                          mutex_exit(&connp->conn_fanout->connf_lock);
                          goto done;
                  }
                  if (connp->conn_sqp != new_sqp) {
                          while (connp->conn_sqp != new_sqp)
!                                 (void) atomic_cas_ptr(&connp->conn_sqp, sqp,
!                                     new_sqp);
                          /* No special MT issues for outbound ixa_sqp hint */
                          connp->conn_ixa->ixa_sqp = new_sqp;
                  }
  
                  do {
                          conn_flags = connp->conn_flags;
                          conn_flags |= IPCL_FULLY_BOUND;
!                         (void) atomic_cas_32(&connp->conn_flags,
!                             connp->conn_flags, conn_flags);
                  } while (!(connp->conn_flags & IPCL_FULLY_BOUND));
  
                  mutex_exit(&connp->conn_fanout->connf_lock);
                  mutex_exit(&connp->conn_lock);