kernel: Differentiate kernel and user processes when picking ID

This allows kernel internal type processes to be assigned IDs in the KIP range while userland processes are assigned in the user range.

src/core/core.cpp

@@ -150,7 +150,8 @@ struct System::Impl {
         }
 
         telemetry_session->AddInitialInfo(*app_loader);
-        auto main_process = Kernel::Process::Create(system, "main");
+        auto main_process =
+            Kernel::Process::Create(system, "main", Kernel::Process::ProcessType::Userland);
         const auto [load_result, load_parameters] = app_loader->Load(*main_process);
         if (load_result != Loader::ResultStatus::Success) {
             LOG_CRITICAL(Core, "Failed to load ROM (Error {})!", static_cast<int>(load_result));