update Bluedroid defines for KitKat

Change-Id: I8fa0194bb4a933ba240adae5d6c292746c6d788b
apexq: support BT SSR in case of HW crash

Change-Id: I4f3781e8956af7020a11001dc2ff048e8b175b56
nuke VARIENT MODEL with fire

Change-Id: If1b208c44095c03a9237d304b1c0502336013896