SAGA: Add missing "break"s

It seems pretty clear to me that these fallthroughs were not
intentional, seeing how one of them could cause ITE to fall through
to IHNM-specific code.

CID 1003744, 1003745

engines/saga/events.cpp

@@ -533,6 +533,7 @@ int Events::handleOneShot(Event *event) {
 		default:
 			break;
 		}
+		break;
 #ifdef ENABLE_IHNM
 	case kCutawayEvent:
 		switch (event->op) {
@@ -545,6 +546,7 @@ int Events::handleOneShot(Event *event) {
 		default:
 			break;
 		}
+		break;
 #endif
 	case kActorEvent:
 		switch (event->op) {
@@ -554,6 +556,7 @@ int Events::handleOneShot(Event *event) {
 		default:
 			break;
 		}
+		break;
 	default:
 		break;
 	}