ALSA: seq: fix spelling mistake "Unamed" -> "Unnamed"

Trivial fix to spelling mistake in string
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/core/seq/seq_ports.c

@@ -669,7 +669,7 @@ int snd_seq_event_port_attach(int client,
 	/* Set up the port */
 	memset(&portinfo, 0, sizeof(portinfo));
 	portinfo.addr.client = client;
-	strlcpy(portinfo.name, portname ? portname : "Unamed port",
+	strlcpy(portinfo.name, portname ? portname : "Unnamed port",
 		sizeof(portinfo.name));
 
 	portinfo.capability = cap;