Signing and encryption keys are not correctly setup in OEMCrypto, when
an offline license is restored, before generating a key release message.
This results in key release failures. Playing back the license response
causes keys to be derived and allows the key release message to be constructed.
b/9016545
Merge of https://widevine-internal-review.googlesource.com/#/c/5682/
from the Widevine CDM repository
Change-Id: Ica9f13acc7c87e3125fa706f3a56e95b77a14a3c