mptcp: Build Fix

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Fixes: 75ec81a35c2 (mptcp: Fix Bug #41: Handle missing entries in the fullmesh-path-manager)
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Merge branch 'mptcp_trunk' into mptcp_v0.89
mptcp: Rename address-id for easier grepping

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
mptcp: Move setting of the bitfield to the fullmesh path-manager

This, to prepare full address-handling in the fullmesh path-manager.

Also, that way we reduce the need to have mptcp_loc4 in
mptcp_init4_subsockets.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
mptcp: Refactor mptcp_find_addresses

This, to allow reusing it later in a more generic way.
We also had to change the address in the events to the union.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
mptcp: Rename id to index and actually use it in fullmesh

To prepare the real support of 8 local addresses.

We need to create a second callback for the path-managers. One, that
gets the index and one that gets the address-id. This is ugly as hell,
but will be changed again very soon, when we move the whole
address-handling to the path-managers.

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
mptcp: Support 8 local addresses

Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Merge branch 'mptcp_trunk' into mptcp_v0.89