boot/edk2: refine license
The edk2 project is licensed under the BSD-2-Clause license with a patent
grant, as per commit 304bff7223a8 ("edk2: Change License.txt from 2-Clause
BSD to BSD+Patent").
There is a BSD-2-Clause-Patent SPDX license identifier[1] for this case,
therefore refine the edk2 package to use this more specific identifier.
[1]: https://spdx.org/licenses/BSD-2-Clause-Patent.html
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Dick Olsson <hi@senzilla.io>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 40c05259d89545c40a2ead709be161569db54a05)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Vincent Stehlé