clk: ti: Use of_clk_get_parent_count() instead of open coding

	int i;

	int num_clks;

	num_clks = of_count_phandle_with_args(node, "clocks", "#clock-cells");

	num_clks = of_clk_get_parent_count(node);

	for (i = 0; i < num_clks; i++) {

		clk = of_clk_get(node, i);