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/port/TencentOS_tiny/osal_timer.c

@@ -0,0 +1,40 @@
+/*
+ * Tencent is pleased to support the open source community by making IoT Hub available.
+ * Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
+
+ * Licensed under the MIT License (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://opensource.org/licenses/MIT
+
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is
+ * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <tos.h>
+#include <string.h>
+
+#include "tos.h"
+
+uint32_t HAL_UptimeMs(void)
+{
+#if (TOS_CFG_CPU_TICK_PER_SECOND == 1000)
+    return (uint32_t)tos_systick_get();
+#else
+    k_tick_t tick = 0u;
+
+    tick = tos_systick_get() * 1000;
+    return (uint32_t)((tick + TOS_CFG_CPU_TICK_PER_SECOND - 1) / TOS_CFG_CPU_TICK_PER_SECOND);
+#endif
+}
+
+#ifdef __cplusplus
+}
+#endif
+