[INTERNAL] ObjectPageHeader added missing property documentation annotation
[INTERNAL] ObjectPageHeader added missing property documentation annotation

Change-Id: Ibcedebdb23295bc8cce933cf60412c5e71baea70

SQCLabs/openui5,SAP/openui5,SAP/openui5,SQCLabs/openui5,olirogers/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,nzamani/openui5,cschuff/openui5,olirogers/openui5,olirogers/openui5