[FIX] sap.ui.table.Table ACC test page to correctly read sap.m.Select control
[FIX] sap.ui.table.Table ACC test page to correctly read sap.m.Select control

- due to a Screenreader bug, nested aria-hidden statements are not correctly interpreted. This issue can be worked around by setting a width to the sap.m.Select control other than "Auto". Width = "Auto" would render the sap.m.Select to fit the widest item it contains. Therefore it has to render a hidden select DOM element to find out the correct width. Unfortunately although this select is set to aria-hidden="true" JAWS would read it.

Change-Id: Ie8bff34d385ae8d5e8748be4b15647282f704aa0
BCP: 1570474084

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