net: fsl_pq_mdio: Fix device node reference leak in fsl_pq_mdio_probe

Add missing of_node_put call to release device node tbi obtained
via for_each_child_of_node.

Fixes: afae5ad7 ("net/fsl_pq_mdio: streamline probing of MDIO nodes")
Signed-off-by: Erick Karanja <karanja99erick@gmail.com>
Link: https://patch.msgid.link/20251002174617.960521-1-karanja99erick@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>