Initial Pi support

This adds code to Peach to allow for identification of Pi.
BUG=none
BRANCH=none
TEST="mosys platform name" works on Pit and Pi

Change-Id: I2391fc72ac5e99cd3f646866e94a36ce9f5eb68f
Signed-off-by: Wonjoon Lee <woojoo.lee@samsung.com>
Reviewed-on: https://chromium-review.googlesource.com/180578
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2 files changed