Add comparison of accel_ecdh_use_psa against ref

With temporary exclusions to be lifted as follow-ups.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 44c62f7..7501ec3 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -183,6 +183,23 @@
             }
         }
     },
+    'analyze_driver_vs_reference_ecdh': {
+        'test_function': do_analyze_driver_vs_reference,
+        'args': {
+            'component_ref': 'test_psa_crypto_config_reference_ecdh_use_psa',
+            'component_driver': 'test_psa_crypto_config_accel_ecdh_use_psa',
+            'ignored_suites': [
+                'ecdh', # the software implementation that's excluded
+            ],
+            'ignored_tests': {
+                # temporary
+                'test_suite_psa_crypto': [
+                    'PSA key agreement setup: ECDH, unknown KDF',
+                    'PSA key policy: raw agreement, key permits raw agreement, but algorithm is not raw',
+                ],
+            }
+        }
+    },
 }
 
 def main():