Use scope based cleanup instead of manual of_node_put() calls, hence
simplifying the handling of error paths at various places.

While at it, use dev_err_probe() instead of dev_err() in all the code
paths touched.
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Kousik Sanagavarapu <five231003@gmail.com>
Link: https://lore.kernel.org/r/20240825085714.10736-3-five231003@gmail.comSigned-off-by: Nishanth Menon <nm@ti.com>