clk: zynq: Remove pointless return at end of void function

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

drivers/clk/zynq/clkc.c

@@ -619,5 +619,4 @@ void __init zynq_clock_init(void)
 np_err:
 	of_node_put(np);
 	BUG();
-	return;
 }