3D Path update with Release 428

[sbertrand-witekio]

The stereo camera positioning has changed with release 428. Update driver accordingly.

0102bb8#commitcomment-84924231

The 3d_path bit has been removed starting with release 428. Instead the "left" sensor is the one selected with sensor_select.sensor field (bits [1:0]):

sensor_select.sensor = 0: test pattern (2x if mode_3d_on is set)
sensor_select.sensor = 1: primary sensor (if mode_3d_on is set then primary is on the left and secondary on the right)
sensor_select.sensor = 2: secondary sensor (if mode_3d_on set then secondary is on the left and primary on the right)

[sbertrand-witekio]

updated in #9