cashew: generate dbus proxies for ipconfig object

Generate dbus proxies for ipconfig object

BUG=chromium-os:27904
TEST=get usage information while attached to an Ethernet

Change-Id: Ice3f5c1eedc217f40668e5c97c1070de8b13081b
Reviewed-on: https://gerrit.chromium.org/gerrit/18801
Reviewed-by: Nathan J. Williams <njw@chromium.org>
Commit-Ready: <jglasgow@google.com>
Tested-by: <jglasgow@google.com>
3 files changed