linux-firmware: add firmware for mhdp8546

Add binary firmware for Cadence MHDP8546 DP bridge.

Release version: 1.2.12
Signed-off-by: Damian Kos <dkos@cadence.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

LICENCE.cadence

+Copyright (c) 2018, Cadence Design Systems, Inc.
+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 Cadence Design Systems, Inc., its products
+  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.
+
+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.
+
+This software contains:
+
+HDCP Cipher is licensed under the FreeBSD license. A copy of the FreeBSD
+license can be found at
+https://www.freebsd.org/copyright/freebsd-license.html.
+The source code for HDCP Cipher can is available here:
+http://www3.cs.stonybrook.edu/~rob/hdcp.html
+
+SSL Library is licensed under the Apache License, Version 2.0.
+A copy of the Apache License, Version 2.0 can be found at
+http://www.apache.org/licenses/LICENSE-2.0.
+The original source code for SSL Library can is available here:
+https://tls.mbed.org/download
+
+Fast discrete Fourier and cosine transforms and inverses
+author: Monty <xiphmont@mit.edu>
+modifications by: Monty
+last modification date: Jul 1 1996
+
+/* These Fourier routines were originally based on the Fourier
+routines of the same names from the NETLIB bihar and fftpack
+fortran libraries developed by Paul N. Swarztrauber at the National
+Center for Atmospheric Research in Boulder, CO USA.  They have been
+reimplemented in C and optimized in a few ways for OggSquish. */
+
+/* As the original fortran libraries are public domain, the C Fourier
+routines in this file are hereby released to the public domain as
+well.  The C routines here produce output exactly equivalent to the
+original fortran routines.  Of particular interest are the facts
+that (like the original fortran), these routines can work on
+arbitrary length vectors that need not be powers of two in
+length. */

WHENCE

@@ -4117,3 +4117,12 @@ Licence:
  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.
+
+--------------------------------------------------------------------------
+
+Driver: cdns-mhdp - Cadence MHDP DP bridge
+
+File: cadence/mhdp8546.bin
+Version: 1.2.12
+
+Licence: Redistributable. See LICENCE.cadence for details