storm: Add new Whirlwind and Arkham memory configs

BUG=chrome-os-partner:47200
BRANCH=storm
TEST=tested on Arkham with new memory config (board_id == 7)

Change-Id: I199cf42dac5d677c7442c4771963e87abca1cb87
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/319597
Reviewed-by: Chun-ta Lin <itspeter@chromium.org>
1 file changed