arm64: Add useful macro definitions for register bits

BUG=chrome-os-partner:30785
BRANCH=None
TEST=Coreboot compiles successfully

Change-Id: I95fdff5d1580faf4cb4f85d6acae7a834b8ff0bf
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/218031
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
1 file changed