[FIX] sap.m.Wizard - _getNextStepreference() returns a wrong result if the sebsequentSteps have a length of 1
[FIX] sap.m.Wizard - _getNextStepreference() returns a wrong result if the sebsequentSteps have a length of 1

BCP: 1770269740
Change-Id: I3757f42ffc52878415bd236ec06eda1c366a34b6

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