Windows: cm_TryBulkStatus processing changes

Windows: cm_TryBulkStatus processing changes

move the logging of success or failure in order to
try to avoid the VS8 compiler optimizing them out.

merge the bulk status information if the current
cm_scache_t object is flagged with an access denied
failure on the last request or if it is a readonly
volume.  This permits us to return something valid
to the directory enumeration that generated the
cm_TryBulkStatus call.

LICENSE MIT

Change-Id: I97e9e096e2c36b0a87baaa8d728b588aaf10f153
Reviewed-on: http://gerrit.openafs.org/858
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>