Ensure 'Confidential' files are not added.
Ensure 'Confidential' files are not added.

Change-Id: Ida2eba5256a9d2452e7cc6245e96c9e66d64bc6c
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/12558
Tested-by: Jenkins Server
Reviewed-by: STEPHEN M. CPREK <449c81c8ca240ee26e6e5e8e94a7cb83f7b02ee8@us.ibm.com>
Reviewed-by: PRACHI GUPTA <25a72946fc4ec2539bba3cff1fbb2916af6a7649@us.ibm.com>
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

alvintpwang/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,Over-enthusiastic/hostboot,csmart/hostboot,Over-enthusiastic/hostboot,Over-enthusiastic/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,alvintpwang/hostboot,Over-enthusiastic/hostboot,csmart/hostboot,csmart/hostboot,csmart/hostboot,alvintpwang/hostboot,csmart/hostboot,alvintpwang/hostboot,open-power/hostboot