[CFG] Add more configs

include/services/cfg.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <cstring>
 #include "helpers.hpp"
 #include "logger.hpp"
 #include "memory.hpp"
@@ -8,6 +9,8 @@ class CFGService {
 	Memory& mem;
 	MAKE_LOG_FUNCTION(log, cfgLogger)
 
+	void writeStringU16(u32 pointer, const std::u16string& string);
+
 	// Service functions
 	void getConfigInfoBlk2(u32 messagePointer);
 	void secureInfoGetRegion(u32 messagePointer);