Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1121012
Description of problem:
when we add/update OS parameters, then on submation the form gets closed and we don't know whether parameter is added or updated unless we navigate back to 'Parameters' tab.

So UI should raise a success notification saying "Successfully Updated os <name>"

Version-Release number of selected component (if applicable):
sat6 GA snap1

How reproducible:
always

Steps to Reproduce:
1. create an OS
2. Add/update OS parameter
3.

Actual results:
No success notification, no way to know whether parameter was added/updated unless we navigate back to 'parameters' tab

Expected results:
UI should raise a success notification when we update anything under OS

Additional info: