Replace int types in Retro code

Retro seemingly avoided using the Dolphin
typedefs in most places, opting to use int/uint
instead. This likely means they didn't use
u8/s8/u16/s16/etc either.


Former-commit-id: 133326ae40

include/rstl/optional_object.hpp

@@ -53,7 +53,7 @@ public:
   T* operator->() { return &data(); }
 
 private:
-  u8 m_data[sizeof(T)];
+  uchar m_data[sizeof(T)];
   bool m_valid ATTRIBUTE_ALIGN(4);
 
   void assign(const T& item) {