ARM: rockchip: Add missing of_node_put() in rockchip_suspend_init()

In rockchip_suspend_init(), of_find_matching_node_and_match() will
return a node pointer with refcount incremented. We should use
of_node_put() in fail path or when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220616021713.3973472-1-windhl@126.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>