net: dsa: Removed unneeded of_node_put in felix_parse_ports_node

net: dsa: Removed unneeded of_node_put in felix_parse_ports_node

Remove unnecessary of_node_put from the continue path to prevent
child node from being released twice, which could avoid resource
leak or other unexpected issues.

Signed-off-by: Lu Hongfei <luhongfei@vivo.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Fixes: de879a016a94 ("net: dsa: felix: add functionality when not all ports are supported")
Link: https://lore.kernel.org/r/20230710031859.36784-1-luhongfei@vivo.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>