This node pointer is returned by of_parse_phandle() with refcount
incremented in this function.
Calling of_node_put() to avoid the refcount leak.

Fixes: 531f67e4 ("ASoC: at91sam9g20ek-wm8731: convert to dt support")
Signed-off-by: NMiaoqian Lin <linmq006@gmail.com>
Reviewed-by: NCodrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307124539.1743-1-linmq006@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>