Skip unneded package manager calls when checking QSB availability

Previous qsb toggle commit added a Search package availability check
that was being called also on some config changes (e.g. open an app,
rotate the screen, press home).
We can use the existing callbacks to avoid this.

Change-Id: I532580eee0ee42a970b2f0550f322d6931267ba7
Signed-off-by: DennySPB <dennyspb@gmail.com>
Signed-off-by: Arghya Chanda <arghyac35@gmail.com>
3 files changed