dbus-sdr: Add sensor event type to sensor

The sensor event type only returned threshold sensor(0x01).
Implement the functionality of getSensorEventTypeFromPath to support
sensor event type codes: unspecified(0x00), threshold(0x01), and
sensor-specified(0x6f).

Signed-off-by: Scron Chang <Scron.Chang@quantatw.com>
Change-Id: Ic08bce55422b8d436fb032627a0a8f96fead1d61
2 files changed