Fix AES-ECB encrypt failure error handling

AES-ECB would return `CKR_OK` when encryption failed. Instead it should
return an appropriate error.

F-496

Author: LinuxJedi

src/internal.c

@@ -9933,6 +9933,9 @@ static int GetEcbCheckValue(WP11_Object* secret, byte* dataOut,
     XFREE(hash, NULL, DYNAMIC_TYPE_TMP_BUFFER);
     XFREE(input, NULL, DYNAMIC_TYPE_TMP_BUFFER);
 
+    if (ret != 0)
+        return CKR_FUNCTION_FAILED;
+
     return CKR_OK;
 }
 #endif