codec2: correct include order and add include dir

Include order (according to Android coding style):
1. local includes
2. ported Chromium vda includes
3. codec2 header includes
4. external includes (libchrome)
5. external includes (system, media, framework...)
6. c/c++ header includes

Bug: None
Test: run native tests
Change-Id: I7506cf4561a1df87a1bc8b6324d9419a01035b18
diff --git a/C2VDAAdaptor.cpp b/C2VDAAdaptor.cpp
index de0ac81..446a6b4 100644
--- a/C2VDAAdaptor.cpp
+++ b/C2VDAAdaptor.cpp
@@ -5,12 +5,13 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "C2VDAAdaptor"
 
-#include "C2VDAAdaptor.h"
-#include "bitstream_buffer.h"
-#include "native_pixmap_handle.h"
-#include "v4l2_device.h"
-#include "v4l2_slice_video_decode_accelerator.h"
-#include "videodev2.h"
+#include <C2VDAAdaptor.h>
+
+#include <bitstream_buffer.h>
+#include <native_pixmap_handle.h>
+#include <v4l2_device.h>
+#include <v4l2_slice_video_decode_accelerator.h>
+#include <videodev2.h>
 
 #include <system/graphics.h>
 #include <utils/Log.h>