imx: Add SDMA firmware for Freescale i.MX6/7 SoCs.

Add the firmwares for the i.MX SDMA driver that runs on i.MX6
and i.MX7.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Nitin Garg <nitin.garg@nxp.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>

LICENSE.sdma_firmware

+Copyright 2017, NXP
+All rights reserved.
+
+Redistribution. Reproduction and redistribution in binary form, without
+modification, for use solely in conjunction with a NXP
+chipset, is 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 NXP 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. NXP (.Licensor.) grants you
+(.Licensee.) a limited, worldwide, royalty-free, non-exclusive license under
+the Patents to make, have made, use, import, offer to sell and sell the
+Software. No hardware per se is licensed hereunder.
+The term .Patents. as used in this agreement means only those patents or patent
+applications owned solely and exclusively by Licensor as of the date of
+Licensor.s submission of the Software and any patents deriving priority (i.e.,
+having a first effective filing date) therefrom. The term .Software. as used in
+this agreement means the firmware image submitted by Licensor, under the terms
+of this license, to git://git.kernel.org/pub/scm/linux/kernel/git/firmware/
+linux-firmware.git.
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WHENCE

@@ -3616,3 +3616,14 @@ Licence: Redistributable. See LICENSE.qcom and qcom/NOTICE.txt for details
 
 Binary files supplied originally from
 https://developer.qualcomm.com/hardware/dragonboard-410c/tools
+
+--------------------------------------------------------------------------
+
+Driver: imx-sdma - support for i.MX SDMA driver
+
+File: imx/sdma/sdma-imx6q.bin
+Version: 3.3
+File: imx/sdma/sdma-imx7d.bin
+Version: 4.2
+
+Licence: Redistributable. See LICENSE.sdma_firmware for details