Add Blinka support for NXP i.mx 8m nano

[AirmanAeronautics]

Hello,
I'm recently integrate the Adafruit sensor with NXP i.mx 8m nano board. it's booted by Debian based distro on this board. I'm installed the necessary pkg for that adafruit sensor and trying to run python code that code it's getting error as:

NotImplementedError:
adafruit-platformdetect version 3.81.0 was unable to identify the board and/or
microcontroller running the Linux platform. Please be sure you
have the latest packages by running:
'pip3 install --upgrade adafruit-blinka adafruit-platformdetect'

    If you are running the latest package, your board may not yet be supported. Please
    open a New Issue on GitHub at https://github.com/adafruit/Adafruit_Blinka/issues and
    select New Board Request.

So please try to add the Blinka support for NXP boards