phy: ti: Fix missing of_node_put in ti_pipe3_get_sysctrl()

of_parse_phandle() returns node pointer with refcount incremented, use
of_node_put() on it to decrease refcount when done.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220408095617.2495234-1-lv.ruyi@zte.com.cn


Signed-off-by: Vinod Koul <vkoul@kernel.org>