libevents: update submodule

And remove obsolete libevents_definitions.h

src/lib/events/events.cpp

@@ -45,7 +45,7 @@ static uint16_t event_sequence{events::initial_event_sequence};
 namespace events
 {
 
-void send(EventType &event)
+void send(event_s &event)
 {
 	event.timestamp = hrt_absolute_time();
 

src/lib/events/events_ioctl.h

@@ -47,5 +47,5 @@
 
 #define EVENTSIOCSEND _EVENTSIOC(1)
 typedef struct eventiocsend {
-	events::EventType &event;
+	event_s &event;
 } eventiocsend_t;

src/lib/events/usr_events.cpp

@@ -44,7 +44,7 @@
 namespace events
 {
 
-void send(EventType &event)
+void send(event_s &event)
 {
 	eventiocsend_t data = {event};
 	boardctl(EVENTSIOCSEND, reinterpret_cast<unsigned long>(&data));