MFC r359777: hdac: show which command timed out

There are several reports of "hdac0: Command timeout on address 2"
messages emitted during playback on a variety of contemporary machines.
Show the command that timed out in case it might provide a clue in
finding the cause.

PR:		229190
Sponsored by:	The FreeBSD Foundation

sys/dev/sound/pci/hda/hdac.c

@@ -996,7 +996,8 @@ hdac_send_command(struct hdac_softc *sc, nid_t cad, uint32_t verb)
 	} while (sc->codecs[cad].pending != 0 && --timeout);
 
 	if (sc->codecs[cad].pending != 0) {
-		device_printf(sc->dev, "Command timeout on address %d\n", cad);
+		device_printf(sc->dev, "Command 0x%08x timeout on address %d\n",
+		    verb, cad);
 		sc->codecs[cad].pending = 0;
 	}