Bump to version 4.0.2
Bump to version 4.0.2

Change-Id: Ibbf786406bf6fdb6675612c4b09bac5b7c26fda3
(cherry picked from commit 3d4f8d0e0af614987370b437942ff12b2172b5b4)

googlesamples/android-testdpc,googlesamples/android-testdpc