Kernel: Move reschedules from SVCs to actual mechanisms that reschedule.

src/core/hle/kernel/event.cpp

@@ -41,7 +41,10 @@ void Event::Acquire() {
 
 void Event::Signal() {
     signaled = true;
+
     WakeupAllWaitingThreads();
+
+    HLE::Reschedule(__func__);
 }
 
 void Event::Clear() {