gdbserver: avoid empty structs

2013-06-25  Mircea Gherzan  <mircea.gherzan@intel.com>

gdbserver/

	* notif.h (notif_event): Add a dummy member to avoid compiler
	errors.

Change-Id: I490dbdb70a24f52b3947371f7c0397bf7a18423c
Signed-off-by: Mircea Gherzan <mircea.gherzan@intel.com>