forked from Mirrors/opensbi

License identifiers should be machine readable. According to the SPDX v2.3.0 specification annex E parentheses are not used in the SPDX identifier field when specifying multiple licenses [1]. [1] https://spdx.github.io/spdx-spec/v2.3/using-SPDX-short-identifiers-in-source-files/ Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Anup Patel <anup@brainfault.org>