ams: basic support for compiling with gcc 16

libraries/libvapours/include/vapours/svc/codegen/impl/svc_codegen_impl_layout.hpp

@@ -185,7 +185,10 @@ namespace ams::svc::codegen::impl {
                 /* Process all arguments, in order. */
                 size_t i = 0;
                 (layout.ProcessArgument<AbiType, ArgumentTypes>(i++, NGRN, NSAA), ...);
-
+                
+                /* TODO: Unused variable. */
+                AMS_UNUSED(i);
+                
                 return layout;
             }