HLE: Properly initialize and shutdown remaining modules.

src/core/hle/shared_page.cpp

@@ -62,6 +62,8 @@ template void Read<u16>(u16 &var, const u32 addr);
 template void Read<u8>(u8 &var, const u32 addr);
 
 void Set3DSlider(float amount) {
+    memset(&shared_page, 0, sizeof(shared_page));
+
     shared_page.sliderstate_3d = amount;
     shared_page.ledstate_3d = (amount == 0.0f); // off when non-zero
 }
@@ -71,4 +73,7 @@ void Init() {
     Set3DSlider(0.0f);
 }
 
+void Shutdown() {
+}
+
 } // namespace