api: add Modem.Time introspection XML

Signed-off-by: Thomas Tuttle <ttuttle@chromium.org>
(cherry picked from commit accb3f0a58b6278788bc3e449ad97d5a4a80d96d)

BUG=chromium-os:10366
TEST=Still compiles
CQ-DEPEND=I4facc05bc70c5c9e6907d041d4dfd9fc1e283bd5

Change-Id: I589d68cce9ff1b13b1713f832d3aac9585eefb12
Reviewed-on: https://gerrit.chromium.org/gerrit/14081
Commit-Ready: ttuttle <ttuttle@chromium.org>
Reviewed-by: ttuttle <ttuttle@chromium.org>
Tested-by: ttuttle <ttuttle@chromium.org>
3 files changed