sensor: add driver for MPU6050 sensor

Add driver to MPU6050 six-axis motion tracking device. The driver has support
for accelerometer, gyroscope and temperature channels.

Datasheet:
	http://43zrtwysvxb2gf29r5o0athu.wpengine.netdna-cdn.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf

Register Map:
	http://43zrtwysvxb2gf29r5o0athu.wpengine.netdna-cdn.com/wp-content/uploads/2015/02/MPU-6000-Register-Map1.pdf



Change-Id: Id3930fc666195051093fee80c15cf2deb0eaedff
Origin: Original
Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>