Add new plat_target_filter.H header file
Add new plat_target_filter.H header file

The new plat_target_filter.H header file designates the values for
the TargetFilter enum and works with parallel changes to the ekb
target_types.H file.

Change-Id: I050976f8a7b7b213c69d10313211c3e9fffdfeee
RTC:149115
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/25305
Tested-by: Jenkins Server
Reviewed-by: Christian R. Geddes <f397583a9caa8163a06ad1128784fb67413f2fe6@us.ibm.com>
Tested-by: FSP CI Jenkins
Reviewed-by: Daniel M. Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot