codel: remove unnecessary sock.h include

Since sock.h is modified relatively often (60 times in the last
12 months) it seems worthwhile to decrease the incremental build
work.

CoDel's header includes net/inet_ecn.h which in turn includes net/sock.h.
codel.h is itself included by mac80211 which is included by much of
the WiFi stack and drivers. Removing the net/inet_ecn.h include from
CoDel breaks the dependecy between WiFi and sock.h.

Commit d068ca2ae2 ("codel: split into multiple files") moved all
the code which actually needs ECN helpers out to net/codel_impl.h,
the include can be moved there as well.

This decreases the incremental build size after touching sock.h
from 4999 objects to 4051 objects.

Fix unmasked missing includes in WiFi drivers.

Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211221193941.3805147-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/wireless/ath/ath11k/debugfs.c

@@ -3,6 +3,8 @@
  * Copyright (c) 2018-2020 The Linux Foundation. All rights reserved.
  */
 
+#include <linux/vmalloc.h>
+
 #include "debugfs.h"
 
 #include "core.h"

drivers/net/wireless/realtek/rtw89/core.c

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /* Copyright(c) 2019-2020  Realtek Corporation
  */
+#include <linux/ip.h>
+#include <linux/udp.h>
 
 #include "coex.h"
 #include "core.h"

drivers/net/wireless/realtek/rtw89/debug.c

@@ -2,6 +2,8 @@
 /* Copyright(c) 2019-2020  Realtek Corporation
  */
 
+#include <linux/vmalloc.h>
+
 #include "coex.h"
 #include "debug.h"
 #include "fw.h"

include/net/codel.h

@@ -45,7 +45,6 @@
 #include <linux/ktime.h>
 #include <linux/skbuff.h>
 #include <net/pkt_sched.h>
-#include <net/inet_ecn.h>
 
 /* Controlling Queue Delay (CoDel) algorithm
  * =========================================

include/net/codel_impl.h

@@ -49,6 +49,8 @@
  * Implemented on linux by Dave Taht and Eric Dumazet
  */
 
+#include <net/inet_ecn.h>
+
 static void codel_params_init(struct codel_params *params)
 {
 	params->interval = MS2TIME(100);