Update references to test helpers

Replace:
* tests/src -> framework/tests/src
* tests/include -> framework/tests/include

Except for occurrences of:
* tests/src/test_helpers (since this only contains ssl_helpers.c)
* tests/src/test_certs.h
* tests/include/alt_dummy

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/scripts/check_names.py b/tests/scripts/check_names.py
index 5128dc8..3310cc6 100755
--- a/tests/scripts/check_names.py
+++ b/tests/scripts/check_names.py
@@ -243,7 +243,7 @@
         ])
         all_macros["internal"] = self.parse_macros([
             "library/*.h",
-            "tests/include/test/drivers/*.h",
+            "framework/tests/include/test/drivers/*.h",
         ])
         all_macros["private"] = self.parse_macros([
             "library/*.c",