[FIX] sap/ui/util/Mobile: Update favicon properly in IE
[FIX] sap/ui/util/Mobile: Update favicon properly in IE

Currently it is not possible to update the favicon icon
in IE properly using the sap/ui/util/Mobile module
via setIcons function.

IE requires a second DOM update forcing the browser to send
the request and to render the icon.

Change-Id: I95e9bca531b05ab32442141ce65bc0b3059f1910
BCP: 002075129400004916292018

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