EMB-486: Goodix touchscreen driver

[Frederic Meeuwissen (Frederic98)]

Description

Support the new NGP displays with Goodix GT911 touch controller.
This works in parallel with the existing F4 screens. The kernel will figure out which chip is available and load the corresponding driver.

A patch is applied to the linux submodule: https://github.com/Ultimaker/linux/tree/EMB-486_Polling_goodix_touchscreen.
However, there is no active "master" branch for iMX8. So, it will point to a new feature branch. Maybe we should create a master branch?

How has this been tested

On NGP, attached new screen - touch works.
On NGP, attach old screen - touch still works.

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