Suppress shared axis transition on Brightness level

The brightness bar is a dialog activity. If the shared axis transition
is applied, we'll see an empty page appears with a seek bar on the top,
which is not ideal. Hence, suppress the transition to keep the original
behaviour.

Fixes: 189076430
Test: robotest and test on the brightness level
Change-Id: I1572c31f09d8c6bb3b2c906f6211ed9b97024439