freedreno/a6xx: Fix dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_out_of_bounds_{min,mag}*
What does this MR do and why?
WIP: freedreno/a6xx: Don't check dst coords
Only the src coords of a blit must be in-bounds.
"Fixes" dEQP-GLES3.functional.fbo.blit.rect.nearest_consistency_out_of_bounds_{min,mag}*
by virtue of avoiding the 3d u_blitter fallback, where NEAREST filtering
doesn't do what the deqp test expects.