input: misc: hbtp_input: Support for Region of Interest/sensors

Add support for sensor and Region of Interest (ROI) events.
Create new ioctl to receive sensor data from userspace.
Create binary sysfs entries to expose data from kernel to
userspace.

Change-Id: Ifa76f08eb293c3da0618c22c07e65976319ea926
Signed-off-by: Alex Sarraf <asarraf@codeaurora.org>