[FIX] sap.m.MessageStrip: QUnit fix
[FIX] sap.m.MessageStrip: QUnit fix

- After a change in sap.m.Link, now a self-reference
of the link is not applied when used in IE.

BCP: 1970130507
Change-Id: I6b5ca1eed3806b27c54e92fe20ec04a347492304

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