[INTERNAL] sap.m.TimePicker - stabilizing the tests
[INTERNAL] sap.m.TimePicker - stabilizing the tests

* a test named "shift+pageup does not have side effects"
have been optimized - a delegate to onAfterRendering event
is added, and the asserts are called from within it

Change-Id: I87c465e972f6524d2f3ac3f1974678fdd533e7ee
BCP: 2070090247

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