tests/kms_force_connector_basic: Disable all crtc's for load-detect.

Load detection requires a inactive crtc to run. The CI igt tests are
failing, so ensure there is at least 1 inactive crtc.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed