tests/kms_flip: Suppress failure from setting mode
tests/kms_flip: Suppress failure from setting mode

We may fail to set a mode if it fails some hidden constraints, such as
bandwidth on the third pipe. This is expected, so skip testing such
modes.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66111
Signed-off-by: Chris Wilson <711c73f64afdce07b7e38039a96d2224209e9a6c@chris-wilson.co.uk>

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