Allow minimum log level to be set for cros-disks daemon.

BUG=chromium-os:15107
TEST=Built and ran on a Cr48 with different minimum log levels.

Change-Id: I0d9b65833b5edbc56e225d90957ab3eebb3baded
Reviewed-on: http://gerrit.chromium.org/gerrit/882
Reviewed-by: Darin Petkov <petkov@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
2 files changed