Bluetooth: Resolved Deadlock due to sudden disconnection from headset

Found one deadlock issue when the headset try to disconnect audio and
at the same time handling SCO failure since headset is failed to respond
to sco request this creates deadlock due to two synchronized objects
ScoSocketConnectThread.this and ScoSocketConnectThread.class. This
change will delay the resetting connect sco thread to avoid deadlock.

CRs-fixed: 481647

Change-Id: I0ea5e7085e173987ae1763327e3e06675fa76d1c
Merge "Bluetooth: Resolved Deadlock due to sudden disconnection from headset"
Merge remote-tracking branch 'caf/jb_2.5' into cm-10.1