Add support for enabling different coreboot stages (bootblock, romstage and
ramstage) to have arm64 architecture. Most of the files have been copied over
from arm/ or arm64-generic work.
BUG=None
BRANCH=None
TEST=Compiled successfully for rush board with bootblock being armv4 and
romstage and ramstage being armv8
Change-Id: Icd59bec55c963a471a50e30972a8092e4c9d2fb2
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/197397
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>