firewire: core: add tracepoints event for asynchronous inbound response

firewire: core: add tracepoints event for asynchronous inbound response

In the transaction of IEEE 1394, the node to receive the asynchronous
request transfers any response packet to the requester except for the
unified transaction.

This commit adds an event for the inbound packet. Note that the code to
decode the packet header is moved, against the note about the sanity
check.

The following example is for asynchronous lock response with
compare_and_swap code.

async_response_inbound: \
  transaction=0xffff955fc6a07a10 generation=5 scode=2 status=1 \
  timestamp=0x0089 dst_id=0xffc1 tlabel=54 tcode=11 src_id=0xffc0 \
  rcode=0 header={0xffc1d9b0,0xffc00000,0x0,0x40002} data={0x50800080}

Link: https://lore.kernel.org/r/20240429043218.609398-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>