big picture: initialize missing input handlers

We need to init the input handlers, otherwise we have a chance to crash
when the fxo is used in some input loop

Author: Megamouse

rpcs3/Emu/RSX/Overlays/overlay_manager.cpp

@@ -1,6 +1,5 @@
 #include "stdafx.h"
 #include "overlay_manager.h"
-#include "Emu/System.h"
 #include <util/asm.hpp>
 
 namespace rsx

rpcs3/Emu/System.cpp

@@ -943,6 +943,8 @@ bool Emulator::BootRsxCapture(const std::string& path)
 	GetCallbacks().on_ready();
 
 	GetCallbacks().init_gs_render(nullptr);
+	GetCallbacks().init_kb_handler();
+	GetCallbacks().init_mouse_handler();
 	GetCallbacks().init_pad_handler("");
 
 	GetCallbacks().on_run(false);
@@ -1001,6 +1003,8 @@ bool Emulator::BootBigPictureMode()
 	GetCallbacks().on_ready();
 
 	GetCallbacks().init_gs_render(nullptr);
+	GetCallbacks().init_kb_handler();
+	GetCallbacks().init_mouse_handler();
 	GetCallbacks().init_pad_handler("");
 
 	GetCallbacks().on_run(false);