HID: external sensor driver

HID driver to handle sensor data from external device
and writes it in to shared memory. Sensor data includes
temperature, accelerometer, gyroscope, magnetometer data.

Change-Id: I06a897166a1106889c60bda0d8f8f84684032d0e
Signed-off-by: Rohit Bandi <rohitbandi@codeaurora.org>