qat: update licence text

The same firmware is distributed with the qat out-of-tree package.
Remove one unnecessary phrase in this licence to align with the licence
used in the out-of-tree package.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

LICENCE.qat_firmware

@@ -18,12 +18,9 @@ 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, 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.
+such patent is necessary to Utilize the software alone. 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,