Use lisp-data-mode in 5 more places

Use lisp-data-mode in 5 more places

Thanks to Juri Linkov and Basil L. Contovounesios for the list and the
indication of the function that needed to be changed.

* lisp/bookmark.el (bookmark-insert-file-format-version-stamp):
Use lisp-data-mode.

* lisp/saveplace.el (save-place-alist-to-file): Use
lisp-data-mode.

* lisp/net/eww.el (eww-write-bookmarks): Use lisp-data-mode.

* lisp/net/nsm.el (nsm-write-settings): Use lisp-data-mode.

* lisp/net/tramp-cache.el (tramp-dump-connection-properties): Use
lisp-data-mode.