build: W600-SDK importiert, Firmware-Build und Hello am EVK

Docker-Build mit gcc-arm-none-eabi 4.9-2014q4 (statt Homebrew-Cask) verwendet,
Dockerfile/tools/docker.sh dafür aus Task 13 vorgezogen. cmake/sdk.cmake schont
gcc 4.9 (kennt -fcommon/-Wno-error=... nicht). Zwei zusätzliche SDK-Stubs
(EarlyInit, pre_gpio_config) in src/sys/sdk_stubs.c ergänzt, siehe sdk/PATCHES.md.

sdk/Platform/Sys/tls_sys.h

@@ -0,0 +1,22 @@
+
+#ifndef TLS_SYS_H
+#define TLS_SYS_H
+#include "wm_type_def.h"
+#include "wm_params.h"
+
+#define SYS_MSG_NET_UP            1
+#define SYS_MSG_NET_DOWN          2
+#define SYS_MSG_CONNECT_FAILED    3
+#define SYS_MSG_AUTO_MODE_RUN     4
+
+#define SYS_MSG_NET2_UP           5
+#define SYS_MSG_NET2_DOWN         6
+#define SYS_MSG_NET2_FAIL         7
+
+#define SYS_MSG_RMMS		   8
+
+int tls_sys_init(void);
+void tls_auto_reconnect(void);
+
+
+#endif /* end of TLS_SYS_H */