switched from fitpc/atom to prime/linux

Also removed a few old things that had nothing reasonable to be changed
to.
diff --git a/aos/common/messages/QueueHolder.h b/aos/common/messages/QueueHolder.h
index 8d8ba51..c40a630 100644
--- a/aos/common/messages/QueueHolder.h
+++ b/aos/common/messages/QueueHolder.h
@@ -12,7 +12,7 @@
 #include "aos/common/type_traits.h"
 #include "aos/common/logging/logging.h"
 #ifndef __VXWORKS__
-#include "aos/atom_code/ipc_lib/queue.h"
+#include "aos/linux_code/ipc_lib/queue.h"
 #endif
 
 namespace aos {