rxrpc: Fix the rxrpc_tx_packet trace line

Fix the rxrpc_tx_packet trace line by storing the where parameter.

Fixes: 4764c0da69 ("rxrpc: Trace packet transmission")
Signed-off-by: David Howells <dhowells@redhat.com>

include/trace/events/rxrpc.h

@@ -931,6 +931,7 @@ TRACE_EVENT(rxrpc_tx_packet,
 	    TP_fast_assign(
 		    __entry->call = call_id;
 		    memcpy(&__entry->whdr, whdr, sizeof(__entry->whdr));
+		    __entry->where = where;
 			   ),
 
 	    TP_printk("c=%08x %08x:%08x:%08x:%04x %08x %08x %02x %02x %s %s",