drm/amdgpu/sdma5.x: suspend KFD queues in ring reset

SDMA 5.x only supports engine soft reset which resets
all queues on the engine.  As such, we need to suspend
KFD queues around resets like we do for SDMA 4.x.

Reviewed-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>