I dropped this from the list of rings for some tests when refactoring to
a common array. Almost all of the tests should be run over the default
exec engine to ensure ABI backwards compatiblity.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Exercise the busy-ioctl and verify it reports the right active engines
using the execbuffer notation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>