testdisplay: update to new addfb2 definition
testdisplay: update to new addfb2 definition

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