Add callouts for bluedroid to acquire wake locks and set wake alarms.
Since bluedroid is running outside of system_server, it does not have
the necessary Linux capabilities or filesystem permissions to access
/sys/power/wake_* and /dev/alarm (or any other wake alarm). This change
provides a mechanism by which bluedroid can call back up into Java code
and use the standard Android APIs to get wake locks / wake alarms.
Change-Id: I714fd394224d38da5ff0f82de5559599d522010b
Conflicts:
include/hardware/bluetooth.h