Merge from Widevine repo of http://go/wvgerrit/22402
This CL updates the oemcrypto reference implementation (mock) to
return OEMCrypto_ERROR_NOT_IMPLEMENTED from OEMCrypto_GetDeviceID when
the device is configured to use provisioning 3.0.
This CL also moves unit test for OEMCrypto_GetDeviceID to the section
that is run only for keybox using devices.
b/33178932
Change-Id: Ie4f9346132ce305bdbd47474dc4c0f6268f3d444
50fe997cf2