clk: ti: dra7-atl-clock: fix a memory leak

of_clk_add_provider makes an internal copy of the parent_names property
while its called, thus it is no longer needed after this call and can
be freed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>

drivers/clk/ti/clk-dra7-atl.c

@@ -199,6 +199,7 @@ static void __init of_dra7_atl_clock_setup(struct device_node *node)
 
 	if (!IS_ERR(clk)) {
 		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+		kfree(parent_names);
 		return;
 	}
 cleanup: