igt/gem_tiled_fence_blits: Allocate bo array

As we allow more buffers to be allocated to fill larger apertures, we
may exceed the static allocation of 4096 buffers.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104669
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
1 file changed