correct interface and private includes

osal/FreeRTOS/CMakeLists.txt

@@ -11,8 +11,19 @@ target_sources(${LIB_FSFW_NAME}
 		MutexFactory.cpp
 		PeriodicTask.cpp
 		QueueFactory.cpp
-		QueueMapManager.cpp
 		SemaphoreFactory.cpp
 		TaskFactory.cpp
 		Timekeeper.cpp
-)
+)
+
+# FreeRTOS is required to link the FSFW now. It is recommended to compile 
+# FreeRTOS as a static library and set LIB_OS_NAME to the target name of the 
+# library.
+if(NOT LIB_OS_NAME)
+	message(FATAL_ERROR 
+		"FreeRTOS needs to be linked as a target and "
+		"LIB_OS_NAME needs to be set to the target"
+	)
+endif()
+
+target_link_libraries(${LIB_FSWFW_NAME} ${LIB_OS_NAME})