Windows: No network, no probe

Modify cm_PingServer and cm_CheckServersMulti to avoid probing servers
when there are no network interfaces with which to do so.  Just mark
the servers down.

Reviewed-on: http://gerrit.openafs.org/11446
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit ac601314706043f623ace379e3da597a7d5c5e9a)

Change-Id: I41ec7269af762abcdc54ea6c59320f1f6c05e89c
Reviewed-on: http://gerrit.openafs.org/11497
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Windows: power management suspend/resume changes

1. Call cm_UpdateIFInfo() for all power management events to force
   an update of the valid network interface count.

2. Ensure that regardless of which Suspend and Resume events are
   generated that the service only suspends once and resumes once.

Reviewed-on: http://gerrit.openafs.org/11447
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit f999113d33adadf9b276e2a30c36d2b3a5e74f7d)

Change-Id: Ia2f39d01c053c4120e87ee70df6a9bf2b35bfad9
Reviewed-on: http://gerrit.openafs.org/11498
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>