Our Video Software backend isn't OpenGL Core compatible, so we need a flag to alloc a compatible one.

v2: Fix AGL profile selection.

Our Video Software backend isn't OpenGL Core compatible, so we need a flag to alloc a compatible one.

This fixes an error on GLInterface shutdown when using EGL.

Samsung updated the video drivers on the SGS6 which introduced a bug when disabling vsync.
Both the driver versions are r5p0, but the md5sums of the blob differ.
To work around the issue, make sure to never disable vsync by calling eglSwapInterval.

We can't actually determine the driver version on Android yet.
So until the driver version lands that displays the driver version string in the GL_VERSION string
we will need to keep this workaround enabled at all times, which is a bit annoying.

Current mali drivers return the video driver version in one of the EGL strings you can query.
The issue with that is that Android eats all of those strings, so we can't query it.

The default EGL_RENDERABLE_TYPE is GLES1, so vendors have the ability to choose between returning only the bits requested, or all of the bits
supported in addition to the one requested.
PowerVR chose to take the route where they only return the bits requested, everyone else returns all of the bits supported.
Instead of letting the vendor have control of this, let's incrementally go through each renderable type and make sure it supports everything we want.
This will cover all devices for now, and for the future.