vos setaddrs: notice unexpected errors

vos setaddrs: notice unexpected errors

Currently 'vos setaddrs' only prints a message and errors out if the
VL_RegisterAddrs call fails with certain error codes (VL_MULTIPADDR
and RXGEN_OPCODE). But if we get something else like an access error,
we should of course print that out, instead of reporting success.

Reviewed-on: http://gerrit.openafs.org/7322
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Reviewed-by: Tom Keiser <tkeiser@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementix.org>
(cherry picked from commit 663185d62df501fb9d7a18e6ef329e4f53aa8854)

Change-Id: I86b8729cd091007b84fb8b7bf19c58d477626686
Reviewed-on: http://gerrit.openafs.org/7489
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>