Support to control enum optimization in targeting compiler output
Support to control enum optimization in targeting compiler output

- Fix for defect CMVC 841050, CQ SW148881
- Added command line support for enum optimization flag
- Updated verbose output to indicate flag value
- Updated help documentation wrt flag
- Updated enum space computation to take flag into account

Change-Id: I78c1ec1443da6d4b1a8977b2ca65aa41b84504e5
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1231
Reviewed-by: Andrew J. Geissler <c46de238cd554860f0bd4010b1729f1323facd9c@us.ibm.com>
Tested-by: Jenkins Server
Reviewed-by: A. Patrick Williams III <c87e37b1a4035affd737b461af89fb722d635f4d@us.ibm.com>

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