[BeagleBoard-X15] 2D Video Acceleration via Etnaviv Project

We now have working reverse-engineered 2D acceleration on the am57xx parts thanks to the Etnaviv project.

For either the BeagleBoard-X15 follow our instructions building either the v4.4.x-ti, v4.9.x (lts), v4.10.x or later kernel’s, then install the xserver-xorg-video-armada-etnaviv, along with the xorg.conf changes needed.

BeagleBoard-X15 xorg.conf changes