support stm8

1. see: TencentOS-tiny\board\STM8L052R8T6\IAR\hello_world
2. compile/debug/run with IAR for STM8

board/STM8L052R8T6/BSP/include/rtc.h

@@ -0,0 +1,20 @@
+#ifndef __RTC_H_
+#define __RTC_H_
+
+typedef struct   
+{
+	uint8_t cSecond;
+	uint8_t cMinute;
+	uint8_t cHour;
+	uint8_t cWeek;
+	uint8_t cDay;
+	uint8_t cMonth;
+	uint8_t cYear;
+} StruCLOCK;
+extern StruCLOCK clock;
+
+void RTC_Setting_Init(void);
+void RTC_Get_Time(void);
+
+#endif
+