test/gen3_mixed_blits: Acutally use fences for BLT
test/gen3_mixed_blits: Acutally use fences for BLT

Gah, in my excitement of reproducing the failure reported by
gem_stress, I missed using fenced relocs for the BLT.

Fortunately, it doesn't affect the presence of the error.

Signed-off-by: Chris Wilson <711c73f64afdce07b7e38039a96d2224209e9a6c@chris-wilson.co.uk>

erikarn/intel-gpu-tools,dlespiau/intel-gpu-tools,dlespiau/checkmate-test-igt,chenxianqin/intel-gpu-tools,ChrisCummins/intel-gpu-tools,chenxianqin/intel-gpu-tools,mv0/intel-gpu-tools,dlespiau/intel-gpu-tools,ChrisCummins/intel-gpu-tools,mv0/intel-gpu-tools,tiagovignatti/intel-gpu-tools,yipdw/intel-gpu-tools,dlespiau/checkmate-test-igt,rib/intel-gpu-tools,yipdw/intel-gpu-tools,tiagovignatti/intel-gpu-tools,dlespiau/intel-gpu-tools,yipdw/intel-gpu-tools,yipdw/intel-gpu-tools,dlespiau/checkmate-test-igt,chenxianqin/intel-gpu-tools,erikarn/intel-gpu-tools,rib/intel-gpu-tools,mv0/intel-gpu-tools,mv0/intel-gpu-tools,rib/intel-gpu-tools,ChrisCummins/intel-gpu-tools,tiagovignatti/intel-gpu-tools,tiagovignatti/intel-gpu-tools,chenxianqin/intel-gpu-tools,erikarn/intel-gpu-tools,erikarn/intel-gpu-tools,rib/intel-gpu-tools,dlespiau/checkmate-test-igt,ChrisCummins/intel-gpu-tools