nouveau/gsp: use rpc sequence numbers properly.

nouveau/gsp: use rpc sequence numbers properly.

There are two layers of sequence numbers, one at the msg level
and one at the rpc level.

570 firmware started asserting on the sequence numbers being
in the right order, and we would see nocat records with asserts
in them.

Add the rpc level sequence number support.

Fixes: 53dac0623853 ("drm/nouveau/gsp: add support for 570.144")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Tested-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20260203052431.2219998-2-airlied@gmail.com