Bluetooth: Avoid window leak when screen orientation changes

Enable screen orientation change support in Bluetooth Settings app
during any Bluetooth Setting Activity. Otherwise, window leak may
observe while screen orientation changes.

CRs-Fixed: 556653
Change-Id: I8868f4c6e96277fd17484f810de6a700198a5287
(cherry picked from commit 43d4fc0bd35ee5573a8f25c980b812e32cd48172)
(cherry picked from commit 06f74dafa10ce9c1a61719e277ac72ea33e6deab)
(cherry picked from commit 547dcac07806559c5c884acc1f32b4e199447cb8)