Windows: Modify cm_GetVolServers and cm_GetServerList

Windows: Modify cm_GetVolServers and cm_GetServerList

Move the determination of the 'replicated' state into
cm_GetVolServers() so that cm_GetServerList() and
cm_ConnFromVolume() can be implemented without duplicating
the resolution of the cm_vol_state_t object.

Change-Id: I355cb2cdf7e327742df7936171ad3dc604f135df
Reviewed-on: http://gerrit.openafs.org/7721
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: Jeffrey Altman <jaltman@your-file-system.com>