mwl8335: add duplex firmware for 88w8335 PCI-based parts

Firmware is "duplex" which means it is capable of both STA and AP
modes.  See the GPL reference driver here for more details on how
to talk to the chip:

http://www.seagate.com/staticfiles/maxtor/en_us/downloads/MSSII_3.1.2.src.tgz

Signed-off-by: Dan Williams <dcbw@redhat.com>

LICENCE.mwl8335

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+FIRMWARE LICENSE TERMS
+
+
+Copyright (c) Marvell International Ltd.
+
+All rights reserved.
+
+Redistribution. Redistribution and use in binary form, without modification, are
+permitted provided that the following conditions are met:
+
+* Redistributions must reproduce the above copyright notice and the following
+disclaimer in the documentation and/or other materials provided with the
+distribution.
+
+* Neither the name of Marvell International Ltd. nor the names of its suppliers
+may be used to endorse or promote products derived from this software without
+specific prior written permission.
+
+* No reverse engineering, decompilation, or disassembly of this software is
+permitted.
+
+Limited patent license. Marvell International Ltd. 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, or in combination with an operating system licensed
+under an approved Open Source license as listed by the Open Source Initiative at
+http://opensource.org/licenses. The patent license shall not apply to any other
+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
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+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.
+
+----
+
+NOTE: this firmware was generated from img_cb35_fw_duplex.h contained in the
+GPL source release of the Maxtor Shared Storage II product available here:
+
+http://www.seagate.com/staticfiles/maxtor/en_us/downloads/MSSII_3.1.2.src.tgz
+
+Explicit permission from Marvell was obtained to upload this firmware to the
+linux-firmware git repository under the Marvell firmware license above.
+