[AOTInductor] Add is_cpu for AOTInductorModelContainer (#109287)
Summary:
If is_cpu is set for the model container, no need to move the weights from cpu to device.
Reviewed By: bertmaher
Differential Revision: D49252595
Pull Request resolved: https://github.com/pytorch/pytorch/pull/109287
Approved by: https://github.com/aakhundov
