key_custom: update analyze_outcomes.py

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 993e23c..082ed01 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -642,8 +642,9 @@
                     re.compile(r'mbedtls_ct_memmove_left .*')
                 ],
                 'test_suite_psa_crypto': [
-                    # We don't support generate_key_ext entry points
+                    # We don't support generate_key_custom entry points
                     # in drivers yet.
+                    re.compile(r'PSA generate key custom: RSA, e=.*'),
                     re.compile(r'PSA generate key ext: RSA, e=.*'),
                 ],
             }