Adjust psa program paths in CMakeLists

This commit adjusts the paths of programs/psa to tf-psa-crypto/programs
in CMakeLists.txt.

Signed-off-by: Harry Ramsey <harry.ramsey@arm.com>
diff --git a/programs/CMakeLists.txt b/programs/CMakeLists.txt
index aaf93ba..87b9a1b 100644
--- a/programs/CMakeLists.txt
+++ b/programs/CMakeLists.txt
@@ -8,7 +8,7 @@
 endif()
 add_subdirectory(hash)
 add_subdirectory(pkey)
-add_subdirectory(psa)
+add_subdirectory(../tf-psa-crypto/programs/psa ../tf-psa-crypto/programs/psa)
 add_subdirectory(random)
 add_subdirectory(ssl)
 add_subdirectory(test)