Add SPM test for OP_TEE

Add test for testing the SPM component. We added a linux arm host
application and 3 SPs. The SPs share the same code but are only build
with different UUIDs.

The test performs the following tests:
-Test the communication between the Normal World and a SP and SP to SP
communication.
-Test memory sharing between Normal World and SP and SP to SP.

The tests can be ran by running the coresponding xtests
xtest 90

Signed-off-by: Jelle Sels <jelle.sels@arm.com>
Change-Id: Iebb7d4242bc3def233cf00675aaae5a5d9c3b578
9 files changed