ARM: zynq: move arm-specific sys_timer out of ttc

Move the sys_timer definition out of ttc driver and make it part of the
common zynq code.  This is preparation for renaming and COMMON_CLK
support.

Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/mach-zynq/timer.c b/arch/arm/mach-zynq/timer.c
index c2c96cc..c93cbe5 100644
--- a/arch/arm/mach-zynq/timer.c
+++ b/arch/arm/mach-zynq/timer.c
@@ -24,7 +24,6 @@
 #include <linux/clockchips.h>
 #include <linux/io.h>
 
-#include <asm/mach/time.h>
 #include <mach/zynq_soc.h>
 #include "common.h"
 
@@ -269,7 +268,7 @@
  * Initializes the timer hardware and register the clock source and clock event
  * timers with Linux kernal timer framework
  **/
-static void __init xttcpss_timer_init(void)
+void __init xttcpss_timer_init(void)
 {
 	xttcpss_timer_hardware_init();
 	clocksource_register_hz(&clocksource_xttcpss, TIMER_RATE);
@@ -289,10 +288,3 @@
 	xttcpss_clockevent.cpumask = cpumask_of(0);
 	clockevents_register_device(&xttcpss_clockevent);
 }
-
-/*
- * Instantiate and initialize the system timer structure
- */
-struct sys_timer xttcpss_sys_timer = {
-	.init		= xttcpss_timer_init,
-};