msm: timer: move get_sclk_time prototype into ifdef

Fix a compile error when CONFIG_ARCH_ARM_TIMER is turned on and
get_sclk_time is used.

Change-Id: I4303974491cbf1030e1fe8663f7d76ebae3cf246
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
diff --git a/arch/arm/mach-msm/timer.h b/arch/arm/mach-msm/timer.h
index 368dd7b..5d18bb4 100644
--- a/arch/arm/mach-msm/timer.h
+++ b/arch/arm/mach-msm/timer.h
@@ -17,12 +17,12 @@
 extern struct sys_timer msm_timer;
 
 void __iomem *msm_timer_get_timer0_base(void);
-int64_t msm_timer_get_sclk_time(int64_t *period);
 uint32_t msm_timer_get_sclk_ticks(void);
 int msm_timer_init_time_sync(void (*timeout)(void));
 #ifndef CONFIG_ARM_ARCH_TIMER
 int64_t msm_timer_enter_idle(void);
 void msm_timer_exit_idle(int low_power);
+int64_t msm_timer_get_sclk_time(int64_t *period);
 #else
 static inline int64_t msm_timer_enter_idle(void) { return 0; }
 static inline void msm_timer_exit_idle(int low_power) { return; }