This adds CB_TAG_RAM_CODE and an entry to sysinfo_t.
BUG=chrome-os-partner:31728
BRANCH=none
TEST=Built and booted on pinky w/ depthcharge patch and saw that
/proc/device-tree/firmware/coreboot/ram-code contains correct
value
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Change-Id: I69ee1fc7bc09c9d1c387efe2d171c57e62cfaf3f
Reviewed-on: https://chromium-review.googlesource.com/231132
Reviewed-by: Julius Werner <jwerner@chromium.org>