Merge pull request #313 from Mike-Mao/newpoll

[BSP]BM9BF618S:fix timer initialization issue.

bsp/mb9bf618s/applications/startup.c

@@ -44,6 +44,9 @@ void rtthread_startup(void)
     /* show version */
     rt_show_version();
 	
+    /* init timer system */
+    rt_system_timer_init();
+
 #ifdef RT_USING_HEAP
 #ifdef __CC_ARM
     rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)FM3_SRAM_END);