Move Mac-only str handling functions to Platform (#10264)

src/openrct2/platform/Platform.Android.cpp

@@ -44,6 +44,16 @@ namespace Platform
         Guard::Assert(false, "GetCurrentExecutablePath() not implemented for Android.");
         return std::string();
     }
+
+    uintptr_t StrDecompToPrecomp(utf8* input)
+    {
+        return reinterpret_cast<uintptr_t>(input);
+    }
+
+    bool HandleSpecialCommandLineArgument(const char* argument)
+    {
+        return false;
+    }
 } // namespace Platform
 
 #endif