support aliyun sdk on TencentOS tiny

sample: examples\aliyun_iotkit_csdk_mqtt
project: board\TencentOS_tiny_EVB_MX_Plus\KEIL\aliyun_iotkit_csdk_mqtt

components/connectivity/iotkit-embedded-3.0.1/3rdparty/src/infra/infra_timer.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+#ifndef _INFRA_TIMER_H_
+#define _INFRA_TIMER_H_
+
+#include "infra_types.h"
+
+typedef struct {
+    uint32_t time;
+} iotx_time_t;
+
+
+void iotx_time_start(iotx_time_t *timer);
+
+uint32_t utils_time_spend(iotx_time_t *start);
+
+uint32_t iotx_time_left(iotx_time_t *end);
+
+uint32_t utils_time_is_expired(iotx_time_t *timer);
+
+void iotx_time_init(iotx_time_t *timer);
+
+void utils_time_countdown_ms(iotx_time_t *timer, uint32_t millisecond);
+
+uint32_t utils_time_get_ms(void);
+
+#endif /* _IOTX_COMMON_TIMER_H_ */
+
+