drm/nve0/fifo: allow channels to be marked as unrunnable
drm/nve0/fifo: allow channels to be marked as unrunnable

Signed-off-by: Ben Skeggs <d9f27fb07c1e9f131223ad827fa5179f3846c30b@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs