kernel/handle_table: Remove usages of the global system instance

Removes even more usages of the global system instance, trimming away
more dependencies on global variables and making them explicit in the
interface.

src/core/hle/kernel/process.cpp

@@ -408,7 +408,7 @@ void Process::LoadModule(CodeSet code_set, VAddr base_addr) {
 Process::Process(Core::System& system)
     : SynchronizationObject{system.Kernel()}, page_table{std::make_unique<Memory::PageTable>(
                                                   system)},
-      address_arbiter{system}, mutex{system}, system{system} {}
+      handle_table{system.Kernel()}, address_arbiter{system}, mutex{system}, system{system} {}
 
 Process::~Process() = default;