Initial version

Add some common FF-A functionality. Supported features (roughly):
  - define FF-A function IDs and error codes
  - create boot info descriptor
  - create partition info descriptor
  - create and parse memory transaction descriptor
  - parse memory relinquish descriptor
  - parse console log message

Limitations apply, code quality is not production ready.

Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Ibb3fde9d4c0d0d9b8823bb84cdcf23eb3f9d087a
11 files changed