igt/kms: Do not wait for fence completion during commit

This will make the IGT tests that use fences more useful, since they can
perform the waiting themselves when required.

To celebrate, also add plane-use-after-nonblocking-unbind-fencing,
the fence version of plane-use-after-nonblocking-unbind.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2 files changed