Patches Revised Taking RadeonSI OpenGL Compatibility Profile To v4.0

After getting the RadeonSI OpenGL compatibility profile support to GL 3.3, Valve's Timothy Arceri has been working on OpenGL 4.4 compatibility profile support. However, with one of those extensions taking a while to wire up, for now he sent out the patches bumping the support to OpenGL 4.0 under this compatibility mode...