Feedback from Arm: guarantee that output_length <= output_size even o…

…n error, to reduce the risk that a missing error check

escalates into a buffer overflow in the application code

Signed-off-by: Stephan Koch <koch@oberon.ch>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>

tests/suites/test_suite_psa_crypto.function

@@ -4175,6 +4175,8 @@ void asymmetric_encrypt(int key_type_arg,
     TEST_EQUAL(actual_status, expected_status);
     if (actual_status == PSA_SUCCESS) {
         TEST_EQUAL(output_length, expected_output_length);
+    } else {
+        TEST_LE_U(output_length, output_size);
     }
 
     /* If the label is empty, the test framework puts a non-null pointer
@@ -4192,6 +4194,8 @@ void asymmetric_encrypt(int key_type_arg,
         TEST_EQUAL(actual_status, expected_status);
         if (actual_status == PSA_SUCCESS) {
             TEST_EQUAL(output_length, expected_output_length);
+        } else {
+            TEST_LE_U(output_length, output_size);
         }
     }