[INTERNAL] sap.m.NavigationList: Improve ARIA support
[INTERNAL] sap.m.NavigationList: Improve ARIA support

Change-Id: I5a2f725b596904ebcf030b1624f8fee7bccc2640

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