CPPLINT: Add lint configuration Borrowed in part from the kernel repository. BUG=none TEST=cros lint is happier Change-Id: Icb41a04dfd4c289187975bc59505c78c26b56f22 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/flashmap/+/5034762 Tested-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Jack Rosenthal <jrosenth@chromium.org> Commit-Queue: Brian Norris <briannorris@chromium.org>