It'll be nice to know which virq belongs to which device/vector when
adding msi routes, so adding two more parameters for the add trace.

Meanwhile, releasing virq has no tracing before. Add one for it.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494309644-18743-2-git-send-email-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>