Update paths pointing to tests/data_files

These now point to framework/data_files instead.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/scripts/audit-validity-dates.py b/tests/scripts/audit-validity-dates.py
index 44b083d..c8b0122 100755
--- a/tests/scripts/audit-validity-dates.py
+++ b/tests/scripts/audit-validity-dates.py
@@ -8,7 +8,7 @@
 This script is used to audit the validity date of crt/crl/csr used for testing.
 It prints the information about X.509 objects excluding the objects that
 are valid throughout the desired validity period. The data are collected
-from tests/data_files/ and tests/suites/*.data files by default.
+from framework/data_files/ and tests/suites/*.data files by default.
 """
 
 import os
@@ -269,12 +269,13 @@
 
 
 class TestDataAuditor(Auditor):
-    """Class for auditing files in `tests/data_files/`"""
+    """Class for auditing files in `framework/data_files/`"""
 
     def collect_default_files(self):
-        """Collect all files in `tests/data_files/`"""
+        """Collect all files in `framework/data_files/`"""
         test_dir = self.find_test_dir()
-        test_data_glob = os.path.join(test_dir, 'data_files/**')
+        test_data_glob = os.path.join(test_dir, os.path.pardir, 'framework',
+                                      'data_files/**')
         data_files = [f for f in glob.glob(test_data_glob, recursive=True)
                       if os.path.isfile(f)]
         return data_files