net: sctp: Rename SCTP_XMIT_NAGLE_DELAY to SCTP_XMIT_DELAY

MSG_MORE and 'corking' a socket would require that the transmit of
a data chunk be delayed.
Rename the return value to be less specific.

Signed-off-by: David Laight <david.laight@aculab.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index d31435e..7e8f0a1 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -629,7 +629,7 @@
 			done = 1;
 			break;
 
-		case SCTP_XMIT_NAGLE_DELAY:
+		case SCTP_XMIT_DELAY:
 			/* Send this packet. */
 			error = sctp_packet_transmit(pkt);
 
@@ -1015,7 +1015,7 @@
 			switch (status) {
 			case SCTP_XMIT_PMTU_FULL:
 			case SCTP_XMIT_RWND_FULL:
-			case SCTP_XMIT_NAGLE_DELAY:
+			case SCTP_XMIT_DELAY:
 				/* We could not append this chunk, so put
 				 * the chunk back on the output queue.
 				 */