Revert "Turn off BLE, GATT, and SMP of Bluetooth stack"

This reverts commit 55272b3a4e917143012a77d937ca2670ec26e0fb.

Both Maguro and Toro do support BLE but for some reasons Google has disabled it
from factory images of 4.3

Change-Id: I7402484a7bc4ebc99b4f6efea1511a57f88991b0