fixed missing include in CriticalSectionLock.h (macro MBED_DEPRECATED_SINCE not defined)

MikeDK · MikeDK · commit cbfae38ba0a1 · 2018-01-16T15:29:37.000+01:00
diff --git a/platform/CriticalSectionLock.h b/platform/CriticalSectionLock.h
@@ -19,6 +19,7 @@
 #define MBED_CRITICALSECTIONLOCK_H
 
 #include "platform/mbed_critical.h"
+#include "platform/mbed_toolchain.h"
 
 namespace mbed {
 
