Allow metatest.c to use crypto internal headers

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/programs/test/CMakeLists.txt b/programs/test/CMakeLists.txt
index ca6e8b2..8a5d6ba 100644
--- a/programs/test/CMakeLists.txt
+++ b/programs/test/CMakeLists.txt
@@ -102,6 +102,10 @@
     target_link_libraries(${exe} ${libs} ${CMAKE_THREAD_LIBS_INIT})
 endforeach()
 
+target_include_directories(metatest
+        PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../tf-psa-crypto/drivers/builtin/include
+                ${CMAKE_CURRENT_SOURCE_DIR}/../../tf-psa-crypto/drivers/builtin/src)
+
 install(TARGETS ${executables}
         DESTINATION "bin"
         PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)