The old at91bootstrap version (1.x) uses a strange variant of the BSD
license, called "BSD Source Code Attribution" and referenced by SPDX
as BSD-Source-Code.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 3887e8c095)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>