Rosenzweig: Panfrost achieves OpenGL ES 3.1 conformance on Mali-G52

Alyssa Rosenzweig reports
that the open-source Panfrost driver for Mali GPUs has achieved official
conformance on Mali-G52 for OpenGL ES 3.1.

This important milestone is a step forward for the open source driver, as it now certifies Panfrost for use in commercial products containing Mali G52 and paves the way for further conformance submissions on other Mali GPUs.