bsc: Use Misc_Helpers.f_shutdown for setverdict(fail)

Unfortunately all component.stop can not be called from the non-mtc
component. f_shutdown is a wrapper that will try to shutdown a test in
the best way calling all component.stop if it is called from the mtc and
just stopping the mtc if called from any other component.

Change-Id: I9b71f7f7bd70d2da21fbad60c340d5bf8b3b9536
1 file changed