Merge of https://widevine-internal-review.googlesource.com/c/cdm/+/169871
The default invalid entitled key session id was 0, which in fact could
be a valid value depending on how the key session id is allocated by the
implementation. This can be a possible cause of L3 entitled key session
failure since L3 can recycle a regular oemcrypto session id 0 and
re-assign it to an entitled key session later.
Bug: 264688931
Test: Run GTS media tests
Change-Id: Iae79d08378d61be8a3402f606992765f24298508
1b5bf5a71a