docs: networking: move ATM drivers to the hw driver section

Move docs for cxacru, fore200e and iphase under device_drivers/atm.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/device_drivers/atm/index.rst

+.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+Asynchronous Transfer Mode (ATM) Device Drivers
+===============================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   cxacru
+   fore200e
+   iphase
+
+.. only::  subproject and html
+
+   Indices
+   =======
+
+   * :ref:`genindex`

Documentation/networking/device_drivers/index.rst

@@ -9,6 +9,7 @@ Contents:
    :maxdepth: 2
 
    appletalk/index
+   atm/index
    cable/index
    cellular/index
    ethernet/index

Documentation/networking/index.rst

@@ -44,7 +44,6 @@ Contents:
    ax25
    bonding
    cdc_mbim
-   cxacru
    dccp
    dctcp
    decnet
@@ -54,7 +53,6 @@ Contents:
    eql
    fib_trie
    filter
-   fore200e
    framerelay
    generic-hdlc
    generic_netlink
@@ -63,7 +61,6 @@ Contents:
    ila
    ipddp
    ip_dynaddr
-   iphase
    ipsec
    ip-sysctl
    ipv6

drivers/atm/Kconfig

@@ -306,8 +306,9 @@ config ATM_IA
 	  for more info about the cards. Say Y (or M to compile as a module
 	  named iphase) here if you have one of these cards.
 
-	  See the file <file:Documentation/networking/iphase.rst> for further
-	  details.
+	  See the file
+	  <file:Documentation/networking/device_drivers/atm/iphase.rst>
+	  for further details.
 
 config ATM_IA_DEBUG
 	bool "Enable debugging messages"
@@ -336,7 +337,8 @@ config ATM_FORE200E
 	  on PCI and SBUS hosts. Say Y (or M to compile as a module
 	  named fore_200e) here if you have one of these ATM adapters.
 
-	  See the file <file:Documentation/networking/fore200e.rst> for
+	  See the file
+	  <file:Documentation/networking/device_drivers/atm/fore200e.rst> for
 	  further details.
 
 config ATM_FORE200E_USE_TASKLET