libsp: Unit testing the functions of ffa_api.h

Testing the FF-A layer by mocking the FF-A SVC layer and validating
calls and returned values.

Signed-off-by: Imre Kis <imre.kis@arm.com>
Change-Id: I544a5fa0b5eb1c72e3443ff7862dacee1b3e8097
2 files changed