Match message_version to AndroidKeymaster version.

Explicitly set the message version used when encoding and decoding
keymaster messages to match the version appropriate to the API version
indicated by AndroidKeymaster. Message version mismatch can otherwise
lead to decoding errors if the default MAX_MESSAGE_VERSION doesn't
match AndroidKeymaster's advertised version.

Change-Id: I318bf09bc88cb99a4cc24e8106975d9deff1aa31
1 file changed