firewire: core: fix type of timestamp for async_inbound_template tracepoints events

The type of time stamp should be u16, instead of u8.

Link: https://lore.kernel.org/r/20240506082154.396077-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>

Author: takaswie

include/trace/events/firewire.h

@@ -106,7 +106,7 @@ DECLARE_EVENT_CLASS(async_inbound_template,
 		__field(u8, generation)
 		__field(u8, scode)
 		__field(u8, status)
-		__field(u8, timestamp)
+		__field(u16, timestamp)
 		__array(u32, header, ASYNC_HEADER_QUADLET_COUNT)
 		__dynamic_array(u32, data, data_count)
 	),