switched from fitpc/atom to prime/linux

Also removed a few old things that had nothing reasonable to be changed
to.
diff --git a/vision/OpenCVWorkTask.cpp b/vision/OpenCVWorkTask.cpp
index 8fc11eb..982d670 100644
--- a/vision/OpenCVWorkTask.cpp
+++ b/vision/OpenCVWorkTask.cpp
@@ -14,8 +14,8 @@
 #include "libjpeg/include/jpeglib.h"
 
 #include "aos/common/time.h"
-#include "aos/atom_code/camera/Buffers.h"
-#include "aos/atom_code/init.h"
+#include "aos/linux_code/camera/Buffers.h"
+#include "aos/linux_code/init.h"
 #include "aos/common/logging/logging.h"
 
 #include "vision/OpenCVWorkTask.h"