trivial: Style changed files

libethdrivers: Add imx8mq-evk support

The imx8mq-evk reuses the imx6 Ethernet drivers as the devices and setup
are very similar. This is a bit of a hack at the moment and will
eventually be cleaned up.

pragma once and for all

Fix whitespace

- remove trailing whitespace
- remove duplicate blank lines
- remove blank lines at end of file

fix licenses