Rename Sensors 2.0 Default Implementation

Rename the default implementation to include ".mock" to indicate that
the default implementation is a mock service and not intended to be
used on production devices.

Bug: 124020028
Test: Builds, cuttlefish loads sensors
Change-Id: I28c29f23615324cb2ae1dbe1767f18d40cf8d8e1
2 files changed