In order to save point position for only certain files, `save-place-local-mode` is used on the desired file. However, point position is not restored on next emacs session, unless save-place-mode is enabled. Enabling save-place-mode means point position is enabled for all files, which is not desired.
So save-place-local-mode is not serving its intended purpose and at the moment there doesn't seem to be a way to enable save-place only for desired files.