BTS_Test_ASCI: Add first ASCI test to check NCH support

Send Notification command to start and stop notifying an ASCI call.
When it starts, it is expected that NCH is received. Also it is expected
that NCH is received again. When it stops, it is expected that NCH is
not received anymore.

Change-Id: I3727c471663b731117a264f60d2f1ba5fd16928e
Related: OS#4851
3 files changed