Revert: "bt: sync with caf kk_2.7_rb-1.42"

* except for bluesleep

Change-Id: I2d737fedf3b6b083ba2739fa27a0ac6874769754 (reverted from commit 76014e74c2971021349b0c3daebd789482e8c23d)
reapply bt linaro fixes
Replaced queue_delayed_work_on with mod_delayed_work_on for autosmp.
update to expirimental 3