dccp ccid-3: Fix RFC reference

Thanks to Wei and Arnaldo for pointing out the correct
new reference for CCID-3.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ccids/Kconfig b/net/dccp/ccids/Kconfig
index b28bf96..4b5db44 100644
--- a/net/dccp/ccids/Kconfig
+++ b/net/dccp/ccids/Kconfig
@@ -29,7 +29,7 @@
 	  http://www.ietf.org/rfc/rfc4342.txt
 
 	  The TFRC congestion control algorithms were initially described in
-	  RFC 5448.
+	  RFC 5348.
 
 	  This text was extracted from RFC 4340 (sec. 10.2),
 	  http://www.ietf.org/rfc/rfc4340.txt