board: Add NXP VMU RT1170 board support package

Adds support for the NXP VMU RT1170 board. This Vehicle
Management Unit based on the i.MX RT1176 brings a fantastic
combination of sensors and IO all on one board for development
of various systems. It is also the featured board for
CogniPilot's Cerebri - VMU autopilot software based on Zephyr.

Co-authored-by: Peter van der Perk <peter.vanderperk@nxp.com>
Signed-off-by: Benjamin Perseghetti <bperseghetti@rudislabs.com>