[ Merge of http://go/wvgerrit/192010 ]
Adding files not merged in ag/26501922
Updates the CDM to add support for DRM reprovisioning request creation.
- Load the baked-in certificate for use as the client token.
- Add functions to build and sign a drm reprovisioning request.
- Update the Rikers L3 OEMCrypto implementation to support signing
provisioning requests and getting embedded certificate.
- Update client id token to handle DRM reprovisioning.
- Add OEMCrypto function to load the baked-in device certificate in
Rikers CDMs and stubs for non-Rikers CDMs.
- Add dynamic adapter support for getting embedded device certificate
only on L3.
Bug: 305093063
Test: WVTS
Change-Id: I839db69a48c1add196f9b56e6ee3812f549f814d
b3157f2328