Windows: Cc FileObject Settings

Windows: Cc FileObject Settings

Modify the assigned CcSetReadAheadGranularity() from 64K to
the afsd_service configured chunk size.

Assign a CcSetDirtyPageThreshold() to be twice the configured chunk size.

Change-Id: I1cfa67612058cf5e08906e369236d0d8a48c54f0
Reviewed-on: http://gerrit.openafs.org/7294
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>