docs: networking: device drivers: convert intel/ipw2100.txt to ReST

- add SPDX header;
- adjust titles and chapters, adding proper markups;
- comment out text-only TOC from html/pdf output;
- use copyright symbol;
- use :field: markup;
- mark code blocks and literals as such;
- mark tables as such;
- adjust identation, whitespaces and blank lines where needed;
- add to networking/index.rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/device_drivers/index.rst

@@ -39,6 +39,7 @@ Contents:
    dlink/dl2k
    freescale/dpaa
    freescale/gianfar
+   intel/ipw2100
 
 .. only::  subproject and html
 

MAINTAINERS

@@ -8742,7 +8742,7 @@ INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT
 M:	Stanislav Yakovlev <stas.yakovlev@gmail.com>
 L:	linux-wireless@vger.kernel.org
 S:	Maintained
-F:	Documentation/networking/device_drivers/intel/ipw2100.txt
+F:	Documentation/networking/device_drivers/intel/ipw2100.rst
 F:	Documentation/networking/device_drivers/intel/ipw2200.txt
 F:	drivers/net/wireless/intel/ipw2x00/
 

drivers/net/wireless/intel/ipw2x00/Kconfig

@@ -16,7 +16,7 @@ config IPW2100
 	  A driver for the Intel PRO/Wireless 2100 Network
 	  Connection 802.11b wireless network adapter.
 
-	  See <file:Documentation/networking/device_drivers/intel/ipw2100.txt>
+	  See <file:Documentation/networking/device_drivers/intel/ipw2100.rst>
 	  for information on the capabilities currently enabled in this driver
 	  and for tips for debugging issues and problems.
 

drivers/net/wireless/intel/ipw2x00/ipw2100.c

@@ -8352,7 +8352,7 @@ static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
 	if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
 		printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
 		       "(detected version id of %u). "
-		       "See Documentation/networking/device_drivers/intel/ipw2100.txt\n",
+		       "See Documentation/networking/device_drivers/intel/ipw2100.rst\n",
 		       h->version);
 		return 1;
 	}