Includes fixes for provisioning and license renewal signature generation. bug: 8620943 Merge of: https://widevine-internal-review.googlesource.com/#/c/5231/ https://widevine-internal-review.googlesource.com/#/c/5200/ from the Widevine CDM repository. Change-Id: I2928c9d59ad5337ca34b4ef7ed58272d34755d2d