Add parsing for the board flag throughout memento

BUG=chromium-os:15670
TEST=manual

Change-Id: I322dc0f96fa1dd81a2736fe67b03136c2565a7b4
Reviewed-on: http://gerrit.chromium.org/gerrit/1414
Tested-by: Dave Tu <[email protected]>
Reviewed-by: Dave Tu <[email protected]>
Reviewed-by: Nick Sanders <[email protected]>
Reviewed-by: Hung-Te Lin <[email protected]>
2 files changed