[INTERNAL] sap.m.Popover: Fixed JSDOC issues
[INTERNAL] sap.m.Popover: Fixed JSDOC issues

Change-Id: I07a1a498ffdc6e18484c62e4868fad1797ba3fc1

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