Add KM_TAG_PADDING_OLD and KM_TAG_DIGEST_OLD.

These represent the current values of KM_TAG_PADDING and KM_TAG_DIGEST,
which are about to change.  These constants provide values for HAL
modules that need to communicate with old HAL implementations.

Change-Id: I66829573ee796b6b8a4f740806f4c7e84b8a14a2
1 file changed