d92d3a884df60544bd900bed1981d1c7de4fea2e
This allows Widevine RKP HAL to query BCC signature via DRM interface during BCC extraction for remote provisioning phase 3. The query returns the "additional_signature" field from OEMCrypto_GetBootCertificateChain(). Test: Manual BCC extraction on Pixel 9 Bug: 355160637 Change-Id: I1a310a80c0cfef82ee3697f06c1293d5c1c3896a
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