This change adds a pit mainboard which is mostly a copy of snow, except that
mentions of the 5250 were replaced with the 5420, and mentions of snow were
replaced with pit.
BUG=chrome-os-partner:19420
TEST=With this and other changes, built for pit.
BRANCH=None
Change-Id: I59fb42b291cee54fe3ea217a2c87a45fef021fbe
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/51460
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
c3f522c149