tipc: make tipc node address support net namespace

If net namespace is supported in tipc, each namespace will be treated
as a separate tipc node. Therefore, every namespace must own its
private tipc node address. This means the "tipc_own_addr" global
variable of node address must be moved to tipc_net structure to
satisfy the requirement. It's turned out that users also can assign
node address for every namespace.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/tipc/addr.c
Simple merge

diff --cc net/tipc/addr.h
Simple merge

diff --cc net/tipc/bcast.c
Simple merge

diff --cc net/tipc/bearer.c
Simple merge

diff --cc net/tipc/config.c
Simple merge

diff --cc net/tipc/core.c
Simple merge

diff --cc net/tipc/core.h
Simple merge

diff --cc net/tipc/discover.c
Simple merge

diff --cc net/tipc/link.c
Simple merge

diff --cc net/tipc/msg.c
Simple merge

diff --cc net/tipc/msg.h
Simple merge

diff --cc net/tipc/name_distr.c
Simple merge

diff --cc net/tipc/name_distr.h
Simple merge

diff --cc net/tipc/name_table.c
Simple merge

diff --cc net/tipc/net.c
Simple merge

diff --cc net/tipc/node.c
Simple merge

diff --cc net/tipc/socket.c
Simple merge