[Tizen] Screen orientation lock should not depend on sensor.

If JS client invokes the API screen.orientation.lock, the actual screen should be locked to correct orientation no matter whether the sensor is connected. The CL is to remove the logic of checking sensor connection.
have you made sure that apps having different default orientations look OK? as far as I remember the current implementation of screen rotation that we have on Tizen IVI and Common has multiple issues.