habanalabs/gaudi: add NIC firmware-related definitions

Add new structures and messages that the driver use to interact with the
firmware to receive information and events (errors) about GAUDI's NIC.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>