arm: zynq: timer: Fix comment style

Fixing multi line comment style at two locations.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Josh Cartwright <josh.cartwright@ni.com>

arch/arm/mach-zynq/timer.c

@@ -36,7 +36,8 @@
 
 #define XTTCPS_CNT_CNTRL_DISABLE_MASK	0x1
 
-/* Setup the timers to use pre-scaling, using a fixed value for now that will
+/*
+ * Setup the timers to use pre-scaling, using a fixed value for now that will
  * work across most input frequency, but it may need to be more dynamic
  */
 #define PRESCALE_EXPONENT	11	/* 2 ^ PRESCALE_EXPONENT = PRESCALE */
@@ -89,8 +90,10 @@ static void xttcps_set_interval(struct xttcps_timer *timer,
 
 	__raw_writel(cycles, timer->base_addr + XTTCPS_INTR_VAL_OFFSET);
 
-	/* Reset the counter (0x10) so that it starts from 0, one-shot
-	   mode makes this needed for timing to be right. */
+	/*
+	 * Reset the counter (0x10) so that it starts from 0, one-shot
+	 * mode makes this needed for timing to be right.
+	 */
 	ctrl_reg |= CNT_CNTRL_RESET;
 	ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK;
 	__raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);