[FIX] sap.m.ObjectHeader: Accessibility test page inludes region labels
[FIX] sap.m.ObjectHeader: Accessibility test page inludes region labels

BCP: 2180274947
Change-Id: If4cd08257a9d1d5dc3df55ae5645adb1314cf612

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5