Allow silent system resets

This allows qemu_system_reset to be issued silently for internal
purposes, ie. without sending out a monitor event. Convert the system
reset after startup to the silent mode.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/xen-all.c b/xen-all.c
index 0eac202..41fd98a 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -452,7 +452,7 @@
                 destroy_hvm_domain();
             }
             if (qemu_reset_requested_get()) {
-                qemu_system_reset();
+                qemu_system_reset(VMRESET_REPORT);
             }
         }