Interface: Rename PSA headers

Renames PSA headers from psa_<api>.h to psa/<api>.h.

Change-Id: I3fc552c39f9a7e6d54e7a7a2f82f076bd03d30a7
Signed-off-by: Jamie Fox <jamie.fox@arm.com>
diff --git a/test/framework/test_framework_helpers.h b/test/framework/test_framework_helpers.h
index fe530a3..8d42fe7 100644
--- a/test/framework/test_framework_helpers.h
+++ b/test/framework/test_framework_helpers.h
@@ -9,7 +9,7 @@
 #define __TEST_FRAMEWORK_HELPERS_H__
 
 #include <stdint.h>
-#include "psa_protected_storage.h"
+#include "psa/protected_storage.h"
 #include "test_framework.h"
 
 #ifdef __cplusplus