* kernel/thread: Change owner_process to std::weak_ptr
Previously this leaked almost all kernel objects. In short, Threads own Processes which own HandleTables which own maps of Objects which include Threads.
Changing this to weak_ptr at least got the camera interfaces to destruct properly. Did not really check the other objects though, and I think there are probably more leaks.
* hle/kernel: Lock certain objects while deserializing
When deserializing other kernel objects, these objects (`MemoryRegion`s and `VMManager`s) can possibly get modified. To avoid inconsistent state caused by destructor side-effects, we may as well simply lock them until loading is fully completed.
* Fix silly typo
Somehow this didn't break?!
de3d7cf49f