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/condition.h b/aos/common/condition.h
index c407070..c913b47 100644
--- a/aos/common/condition.h
+++ b/aos/common/condition.h
@@ -2,7 +2,7 @@
 #define AOS_COMMON_CONDITION_H_
 
 #include "aos/common/mutex.h"
-#include "aos/atom_code/ipc_lib/aos_sync.h"
+#include "aos/linux_code/ipc_lib/aos_sync.h"
 
 namespace aos {