depthcharge: mancomb: Add initial board

BUG=b:182211161
TEST=emerge-mancomb depthcharge

Change-Id: If0bfc561e14c03deb76401367259d721e9b8c454
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2815258
Tested-by: Mathew King <mathewk@chromium.org>
Auto-Submit: Mathew King <mathewk@chromium.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Commit-Queue: Martin Roth <martinroth@google.com>
3 files changed