Add LIS3DSH driver.

Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>
Integrate LIS3DSH driver into the platform files.

Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>
Fix platform files to correctly manage lis3dsh driver.

Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>
Enable debug mode into makefile

Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>
Change sensors priority to read the gyro data in the case acc is not present.

Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>