[INTERNAL] sap.m.MessagePage: Corrected failing visual test
[INTERNAL] sap.m.MessagePage: Corrected failing visual test

Issue:
In mobile environment some of the controls (in the Master view)
are not visible, which leads to test failure.

Solution:
ensure that after each operation we are moving back to the
Master view.

Change-Id: I14873eab1f1458b51651ce010d7b850e430b2c5e

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