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/tools/default_settings.mk

@@ -0,0 +1,33 @@
+DEFAULT_BLD             ?= $(CONFIG_DIR)/config.ubuntu.x86
+POST_ENV_HOOK           := Post_Env
+POST_FINAL_OUT_HOOK     := Post_Distro
+
+ifeq (Darwin,$(shell uname))
+POST_FINAL_OUT_HOOK     :=
+endif
+
+CONFIG_LIB_EXPORT       ?= static
+
+# Default CFLAGS setting
+#
+CFLAGS  += -ansi
+CFLAGS  += -Wdeclaration-after-statement
+CFLAGS  += -DFORCE_SSL_VERIFY
+
+# Default INCLUDE list
+#
+I_DIRS  := \
+    include \
+    include/imports \
+    include/exports \
+    wrappers \
+
+CFLAGS += $(foreach D,$(I_DIRS),$(if $(shell [ -d $(TOP_DIR)/$(D) ] && echo y), -I$(D)))
+
+# For one makefile Generation
+#
+EXTRA_INSTALL_HDRS  := \
+    $(EXPORT_DIR)/iot_import.h \
+    $(EXPORT_DIR)/iot_export.h \
+    $(EXPORT_DIR)/imports \
+    $(EXPORT_DIR)/exports \