clocksource: mxs_timer: Add semicolon at end of line

Fix the following build error:

drivers/clocksource/mxs_timer.c:304:1: error: expected ',' or ';' at end of input
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

drivers/clocksource/mxs_timer.c

@@ -301,4 +301,4 @@ static void __init mxs_timer_init(struct device_node *np)
 	irq = irq_of_parse_and_map(np, 0);
 	setup_irq(irq, &mxs_timer_irq);
 }
-CLOCKSOURCE_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init)
+CLOCKSOURCE_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init);