SPM: declare third cactus instance as UP SP

The FF-A v1.0 spec allows two configurations for the number of EC/vCPU
instantiated in a Secure Partition:
-A MultiProcessor (MP) SP instantiates as many ECs as the number of PEs.
An EC is pinned to a corresponding physical CPU.
-An UniProcessor (UP) SP instantiates a single EC. The EC is migrated to
the physical CPU from which the FF-A call is originating.
This change permits exercising the latter case within the TF-A-tests
framework.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7fae0e7b873f349b34e57de5cea496210123aea0
1 file changed