Add attestation SP deployment

Adds a new deployment for running an Attestation service provider
in an SP for the opteesp environment.  Attestation service level
tests have been moved to the common ts-service-test.cmake file
so tests can be run in target and native PC environments.  The
Attestation SP has the following limitations:
- Mocked up event log - integration with TF-A/SPM not yet complete
- Uses mbedcrypto directly rather than teh Crypto service

Signed-off-by: Julian Hall <julian.hall@arm.com>
Signed-off-by: Gyorgy Szing <gyorgy.szing@arm.com>
Change-Id: Ib5efffaab1b23e5c31cbf87aba7ebcf3589aeb3a
20 files changed