[FIX] sap.m.MultiInput: Failing QUnit test #94 on IE now fixed
[FIX] sap.m.MultiInput: Failing QUnit test #94 on IE now fixed

Test #94: Collapsed state (N-more): Selected items list update on mobile
was failing because in IE the tokenizer's popup is getting auto-closed
with delay, after the tokenizer itself has been destroyed.

Now the popup is closed before destroying so it has place to return the
focus to prevent the exception in IE

BCP: 2070446552
Change-Id: I235e5b23cd946ac9d710d48060d506258a4fff7c

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