Add missing cleanup to hash multipart operation tests

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/suites/test_suite_psa_crypto_hash.function b/tests/suites/test_suite_psa_crypto_hash.function
index 6c577c0..1bc9331 100644
--- a/tests/suites/test_suite_psa_crypto_hash.function
+++ b/tests/suites/test_suite_psa_crypto_hash.function
@@ -31,6 +31,7 @@
                     actual_hash, actual_hash_length );
 
 exit:
+    psa_hash_abort( &operation );
     PSA_DONE( );
 }
 /* END_CASE */
@@ -52,6 +53,7 @@
                                  expected_hash->len ) );
 
 exit:
+    psa_hash_abort( &operation );
     PSA_DONE( );
 }
 /* END_CASE */
@@ -95,6 +97,8 @@
     } while( len++ != input->len );
 
 exit:
+    psa_hash_abort( &operation );
+    psa_hash_abort( &operation2 );
     PSA_DONE( );
 }
 /* END_CASE */