arm: zynq: timer: Remove redundant #includes

Some #includes are implicitly included through others, some are
just not needed.

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

arch/arm/mach-zynq/timer.c

@@ -15,20 +15,12 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/kernel.h>
-#include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/types.h>
-#include <linux/clocksource.h>
 #include <linux/clockchips.h>
-#include <linux/io.h>
-#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/slab.h>
 #include <linux/clk-provider.h>
-
 #include "common.h"
 
 /*