mm-video: Allow devices to override QComOMXMetadata header

* Certain manufacturers add extra fields to the
  encoder_media_buffer_type struct.

Change-Id: I2485196c2ab5d798a1dcd2353c9f8cc5114987f8

Author: intervigilium

mm-video/vidc/venc/inc/omx_video_base.h

@@ -47,7 +47,7 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifdef _ANDROID_
   #include <binder/MemoryHeapBase.h>
 #ifdef _ANDROID_ICS_
-  #include "QComOMXMetadata.h"
+  #include <QComOMXMetadata.h>
 #endif
 #endif // _ANDROID_
 #include <pthread.h>