[INTERNAL][FIX] sap.m.ObjectHeader: overwriting of sap.ui.core.Icon fixed
[INTERNAL][FIX] sap.m.ObjectHeader: overwriting of sap.ui.core.Icon
fixed

Change-Id: I11f060180f5c096950070e32c9dde01d30a46233
BCP: 1570808170

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