bluesleep: Back out LGE_BLUESLEEP changes and add bluedroid support

Change-Id: I855e895d3241de4b287e2e3344b7efdb1c6321d3
bluesleep: Fix L2 crash with host-initiated bluetooth connections
bluesleep: Remove remnants of LGE_BLUESLEEP

The patching of msm_serial_hs should make the clock workarounds
unnecessary