stratosphere: In-class initialize members

Same thing, less code, less boilerplate.

stratosphere/fs_mitm/source/fsmitm_service.hpp

@@ -12,11 +12,11 @@ enum class FspSrvCmd {
 
 class FsMitMService : public IMitMServiceObject {      
     private:
-        bool has_initialized;
-        u64 init_pid;
+        bool has_initialized = false;
+        u64 init_pid = 0;
         std::shared_ptr<IStorageInterface> romfs_storage;
     public:
-        FsMitMService(Service *s) : IMitMServiceObject(s), has_initialized(false), init_pid(0) {
+        FsMitMService(Service *s) : IMitMServiceObject(s) {
             /* ... */
         }