Add support for QC's time_daemon

Enabled by BOARD_USES_QC_TIME_SERVICES=true, it requires the device
to provide its own time_daemon executable and libtime_genoff.so
proprietaries. The library should be copied by the device's setup
config to $OUT/obj/lib for linkage (and pushed to the final build,
obviously)

Reworked for Android 5.0 compatibility by Andrew Dodd <atd7@cornell.edu>

Change-Id: I84f8bf18b08e6bddd0c2bac3d045caff2589a0e7
Signed-off-by: Andrew Dodd <atd7@cornell.edu>