Fix SPMC test changes related build errors

FF-A function definition changes were not followed up in SPMC test code, and
cause a build error. This change adapts the test code to the changes and
restores the build.

Signed-off-by: Jelle Sels <jelle.sels@arm.com>
Change-Id: Iac593b34f47937f90d21b0611c4a8c44181015a4
1 file changed