src/arch/ppc64: Convert to SPDX license header

This also drops individual copyright notices, all mentioned authors in
that part of the tree are already listed in AUTHORS.

Change-Id: I19b1c379b474dd011e2d0f8c8202ff1351c9290d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions