Move clock related functions to qemu-timer.h

Move declarations for clock related functions from sysemu.h to qemu-timer.h.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

qemu-timer.h

@@ -59,6 +59,10 @@ void init_clocks(void);
 int init_timer_alarm(void);
 void quit_timers(void);
 
+int64_t cpu_get_ticks(void);
+void cpu_enable_ticks(void);
+void cpu_disable_ticks(void);
+
 static inline QEMUTimer *qemu_new_timer_ns(QEMUClock *clock, QEMUTimerCB *cb,
                                            void *opaque)
 {

sysemu.h

@@ -41,10 +41,6 @@ uint64_t ram_bytes_remaining(void);
 uint64_t ram_bytes_transferred(void);
 uint64_t ram_bytes_total(void);
 
-int64_t cpu_get_ticks(void);
-void cpu_enable_ticks(void);
-void cpu_disable_ticks(void);
-
 void qemu_system_reset_request(void);
 void qemu_system_shutdown_request(void);
 void qemu_system_powerdown_request(void);