smdk-dltool: update to latest upstream version

This fixes the missing libusb SLOT depend and updates it to libusb-1.0.

BUG=chromium-os:25695
TEST=`emerge smdk-dltool` works and links against libusb-1.0
TEST=send to dianders and he said it ran fine

Change-Id: I65fc2b6385d4b52443cd40e431e1467472f6bd3d
Reviewed-on: https://gerrit.chromium.org/gerrit/15090
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
3 files changed