r300: don't abort on flow control when using draw for vs
What does this MR do and why?
r300: don't abort on flow control when using draw for vs
This was missed when we started reporting linking failures in 1021e2b9. Obviously if we are using draw/llvmpipe for the vertex shaders, we don't have to worry about control flow at all.
Around 250 dEQPs go from Skip to Pass.
Also add a list of dEQP failures for RV370 with RADEON_DEBUG=notcl, I have to confess I was not testing the swtcl paths too much, but I'll try to add this to my usual pre-merge testing.