MINOR: fd: move .linger_risk into fdtab[].state

No need to keep this flag apart any more, let's merge it into the global
state. The CLI's output state was extended to 6 digits and the linger/cloned
flags moved inside the parenthesis.
diff --git a/src/tcpcheck.c b/src/tcpcheck.c
index 52b47ee..a99ec09 100644
--- a/src/tcpcheck.c
+++ b/src/tcpcheck.c
@@ -1128,7 +1128,7 @@
 
 	if (conn_ctrl_ready(conn) && (connect->options & TCPCHK_OPT_LINGER)) {
 		/* Some servers don't like reset on close */
-		fdtab[cs->conn->handle.fd].linger_risk = 0;
+		HA_ATOMIC_AND(&fdtab[cs->conn->handle.fd].state, ~FD_LINGER_RISK);
 	}
 
 	if (conn_ctrl_ready(conn) && (conn->flags & (CO_FL_SEND_PROXY | CO_FL_SOCKS4))) {