viced: Make Update_TargetVnodeStatus usable by replication code

viced: Make Update_TargetVnodeStatus usable by replication code

Add a remote flag, skip rights related code for the remote case.

This will need to be revisited later; in the case that what ends
up on disk is slightly different than the InStatus passed in, the
changes should be preserved to pass to the replicas.

Change-Id: I596698ba00174efbdc6a170a24f86ea88554f9af
Reviewed-on: http://gerrit.openafs.org/6675
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementix.org>