[FIX] sap.f.DynamicPage: header visiblitiy shouldn`t change if header is pinned fixed
[FIX] sap.f.DynamicPage: header visiblitiy shouldn`t change if header is pinned fixed

Change-Id: I50d48c37f99d0ba39458a0a56ff20164c719fd57

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