[3/n] loading meta to device (#100495)
Summary: Make it possible to `torch.jit.load(model, device)` to a device when `model` contains weights that are on device `meta`. Just leave the `meta` weights on `meta`, and load the weights that can be loaded to the target device.
Reviewed By: singlaiiit, RoshanPAN, sayitmemory
Differential Revision: D45099145
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100495
Approved by: https://github.com/houseroad
