[TCP]: clear_all_retrans_hints prefixed by tcp_

In addition, fix its function comment spacing.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4ba256a..d78ad9b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1066,8 +1066,8 @@
 	TCP_ADD_STATS_USER(TCP_MIB_MAXCONN, -1);
 }
 
-/*from STCP */
-static inline void clear_all_retrans_hints(struct tcp_sock *tp){
+/* from STCP */
+static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp) {
 	tp->lost_skb_hint = NULL;
 	tp->scoreboard_skb_hint = NULL;
 	tp->retransmit_skb_hint = NULL;