net: hisilicon: hns_mdio: fix OF node leak in probe()

[ Upstream commit e62beddc45f487b9969821fad3a0913d9bc18a2f ]

Driver is leaking OF node reference from
of_parse_phandle_with_fixed_args() in probe().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240827144421.52852-4-krzysztof.kozlowski@linaro.org


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