iterable_sections: move to specific header

Until now iterable sections APIs have been part of the toolchain
(common) headers. They are not strictly related to a toolchain, they
just rely on linker providing support for sections. Most files relied on
indirect includes to access the API, now, it is included as needed.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>

subsys/bluetooth/mesh/adv_ext.c

@@ -8,7 +8,7 @@
 
 #include <zephyr/kernel.h>
 #include <zephyr/debug/stack.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/hci.h>

subsys/bluetooth/mesh/app_keys.c

@@ -9,6 +9,8 @@
 #include <stdlib.h>
 #include <zephyr/bluetooth/mesh.h>
 #include <zephyr/bluetooth/conn.h>
+#include <zephyr/sys/iterable_sections.h>
+
 #include "mesh.h"
 #include "net.h"
 #include "app_keys.h"

subsys/bluetooth/mesh/beacon.c

@@ -8,7 +8,7 @@
 #include <errno.h>
 #include <zephyr/sys/util.h>
 #include <zephyr/sys/byteorder.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/conn.h>

subsys/bluetooth/mesh/friend.c

@@ -7,7 +7,7 @@
 #include <stdint.h>
 #include <zephyr/kernel.h>
 #include <zephyr/sys/byteorder.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/mesh.h>

subsys/bluetooth/mesh/heartbeat.c

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 #include <zephyr/bluetooth/mesh.h>
+#include <zephyr/sys/iterable_sections.h>
+
 #include "net.h"
 #include "rpl.h"
 #include "access.h"

subsys/bluetooth/mesh/lpn.c

@@ -7,7 +7,7 @@
 #include <stdint.h>
 #include <zephyr/kernel.h>
 #include <zephyr/sys/byteorder.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/mesh.h>

subsys/bluetooth/mesh/mesh.h

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <zephyr/sys/iterable_sections.h>
+
 #define BT_MESH_KEY_PRIMARY 0x0000
 
 enum bt_mesh_key_evt {

subsys/bluetooth/mesh/proxy_srv.c

@@ -7,7 +7,7 @@
 
 #include <zephyr/kernel.h>
 #include <zephyr/sys/byteorder.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/conn.h>

subsys/bluetooth/mesh/subnet.c

@@ -13,7 +13,7 @@
 #include <zephyr/sys/atomic.h>
 #include <zephyr/sys/util.h>
 #include <zephyr/sys/byteorder.h>
-
+#include <zephyr/sys/iterable_sections.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/conn.h>

subsys/bluetooth/mesh/subnet.h

@@ -11,6 +11,7 @@
 #include <sys/types.h>
 #include <zephyr/net/buf.h>
 #include <zephyr/kernel.h>
+#include <zephyr/sys/iterable_sections.h>
 
 #define BT_MESH_NET_FLAG_KR       BIT(0)
 #define BT_MESH_NET_FLAG_IVU      BIT(1)