QError: Introduce QERR_QMP_EXTRA_MEMBER

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/qerror.h b/qerror.h
index 77ae574..9ad00b4 100644
--- a/qerror.h
+++ b/qerror.h
@@ -148,6 +148,9 @@
 #define QERR_QMP_BAD_INPUT_OBJECT_MEMBER \
     "{ 'class': 'QMPBadInputObjectMember', 'data': { 'member': %s, 'expected': %s } }"
 
+#define QERR_QMP_EXTRA_MEMBER \
+    "{ 'class': 'QMPExtraInputObjectMember', 'data': { 'member': %s } }"
+
 #define QERR_SET_PASSWD_FAILED \
     "{ 'class': 'SetPasswdFailed', 'data': {} }"