imageloader: add libdevmapper dep

BUG=chromium:770386
BUG=chromium:760007
BUG=chromium:772132
TEST=precq passes

Change-Id: I7d0d208b03db5430f1c7a6f7485d78e4fc853c34
Reviewed-on: https://chromium-review.googlesource.com/693224
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Greg Kerr <kerrnel@chromium.org>
Reviewed-by: Nicolas Norvez <norvez@chromium.org>
Reviewed-by: Allen Webb <allenwebb@google.com>
(cherry picked from commit c745a92832f1f13ffaf32329306eb9c98a21a359)
Reviewed-on: https://chromium-review.googlesource.com/701574
Trybot-Ready: Allen Webb <allenwebb@google.com>
Tested-by: Allen Webb <allenwebb@google.com>
Commit-Queue: Allen Webb <allenwebb@google.com>
1 file changed