Update rthw.h

Author: Guozhanxin

include/rthw.h

@@ -126,13 +126,11 @@ void rt_hw_local_irq_enable(rt_base_t level);
 
 #define rt_hw_interrupt_disable rt_cpus_lock
 #define rt_hw_interrupt_enable rt_cpus_unlock
-
-rt_bool_t rt_hw_interrupt_is_disabled(void);
 #else
 rt_base_t rt_hw_interrupt_disable(void);
 void rt_hw_interrupt_enable(rt_base_t level);
-rt_bool_t rt_hw_interrupt_is_disabled(void);
 #endif /*RT_USING_SMP*/
+rt_bool_t rt_hw_interrupt_is_disabled(void);
 
 /*
  * Context interfaces