freedreno: cffdec fixes
Some fixes I made in the process of looking into drm/msm#8 (closed)
2nd commit was probably my fault, I might have suggested buf1->gpuaddr - buf2->gpuaddr
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Some fixes I made in the process of looking into drm/msm#8 (closed)
2nd commit was probably my fault, I might have suggested buf1->gpuaddr - buf2->gpuaddr