drm/amdkfd: Checkpoint and restore queues on GFX11

The code in kfd_mqd_manager_v11.c to support criu dump and
restore of queue state was missing.

Added it; should be equivalent to kfd_mqd_manager_v10.c.

CC: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>