linux-firmware: ixp4xx: Add the IXP4xx firmware

This firmware has been used since the early 2000s by OpenWrt
and different PDA/SBC projects such as Linux handhelds for
supporting the Network Processing Engines inside the Intel
XScale IXP4xx SoC.

It is better to distribute it inside linux-firmware.

An included program with dubious licensing was removed, we
only redistribute the pre-generated binaries that had clear
licensing.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

LICENSE.ixp4xx

@@ -0,0 +1,27 @@
+INTEL(R) SOFTWARE LICENSE AGREEMENT
+
+Copyright (c) 2007, Intel Corporation.
+All rights reserved.
+
+Redistribution. Redistribution and use in binary form, without modification, are permitted
+provided that the following conditions are met:
+o Redistributions must reproduce the above copyright notice and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+o Neither the name of Intel Corporation nor the names of its suppliers may be used to endorse
+or promote products derived from this software without specific prior written permission.
+o No reverse engineering, decompilation, or disassembly of this software is permitted.
+
+Limited patent license. Intel Corporation grants a world-wide, royalty-free, non-exclusive
+license under patents it now or hereafter owns or controls to make, have made, use, import,
+offer to sell and sell (.Utilize.) this software, but solely to the extent that any such patent is
+necessary to Utilize the software alone. The patent license shall not apply to any combinations
+which include this software. No hardware per se is licensed hereunder.
+DISCLAIMER. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.

WHENCE

@@ -1146,6 +1146,16 @@ Licence: Redistributable. See LICENSE.ipu3_firmware for details
 
 --------------------------------------------------------------------------
 
+Driver: ixp4xx-npe - Intel IXP4xx XScale Network Processing Engine (NPE) Firmware
+File: ixp4xx/NPE-A
+File: ixp4xx/NPE-A-HSS
+File: ixp4xx/NPE-B
+File: ixp4xx/NPE-C
+Version: date = February 26, 2007
+License: Redistributable. See LICENSE.ixp4xx for details
+
+--------------------------------------------------------------------------
+
 Driver: tehuti - Tehuti Networks 10G Ethernet
 
 File: tehuti/bdx.bin