clk: ti: fix refcount leak in ti_dt_clocks_register()

The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Fixes: 5b385a45 ("clk: ti: add support for clkctrl aliases")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>