viced: initInterfaceAddr_r regardless of ICBS code
Currently we only call initInterfaceAddr_r for a host if a call to
RXAFS_InitCallBackState3 succeeds. However, this leaves the host
without a host->interface structure, which indicates that the host
does not support UUIDs, and is represented by just a single host,port
pair.
But this is not correct; the host probably does have the relevant UUID
associated with it, but it is just not responding. So, with the
current code, we create a uuid-less host structure for a host that
probably has a uuid; that host structure will probably never be used,
and will just get deleted later.
So instead, always call initInterfaceAdd_r. Do it before the ICBS
call, so the host will be findable via UUID as early as possible. If
the ICBS call fails, the host will be marked as 'down' later on.