msm: timer: Add a stub for msm_timer_get_timer0_base

This function is not defined if native ARM timers are used,
leading to compilation errors in shared restart core.

Change-Id: Idbb393f9e5f884d31088be211a5456c1d76b5d02
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
diff --git a/arch/arm/mach-msm/timer.h b/arch/arm/mach-msm/timer.h
index 5d18bb4..ebe1819 100644
--- a/arch/arm/mach-msm/timer.h
+++ b/arch/arm/mach-msm/timer.h
@@ -16,10 +16,10 @@
 
 extern struct sys_timer msm_timer;
 
-void __iomem *msm_timer_get_timer0_base(void);
 uint32_t msm_timer_get_sclk_ticks(void);
 int msm_timer_init_time_sync(void (*timeout)(void));
 #ifndef CONFIG_ARM_ARCH_TIMER
+void __iomem *msm_timer_get_timer0_base(void);
 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);
@@ -27,5 +27,6 @@
 static inline int64_t msm_timer_enter_idle(void) { return 0; }
 static inline void msm_timer_exit_idle(int low_power) { return; }
 static inline int64_t msm_timer_get_sclk_time(int64_t *period) { return 0; }
+static inline void __iomem *msm_timer_get_timer0_base(void) { return NULL; }
 #endif
 #endif