Move A2dp State to Disconnected when BT is Turned OFF

Move A2dp State to Disconnected when BT is Turned OFF

A2dp State gets Stuck in Connecting state If User tries to connect to
other paired device when device is already connected to one, and before
connection swap succeeds, power-cycles BT.
This change allows the state to move properly to disconnected for the
device pending connect when BT is turned off.

Change-Id: I17bc620551bf735f39327eff59102c14551bcf26

(cherry picked from commit 0ce6816d43761b838b65adbf1e636630e1047fcf)
(cherry picked from commit 51c4d0f1df682f3874915f99ef49ec5c3d9e74ed)
(cherry picked from commit 6583fca29318b3c8bc0b16d588fc939ffdde6142)