commonsys-intf: add buffer handle in Smomo buffer info

Smomo needs buffer handle to get the buffer metadata info.

Change-Id: Iaf19a96b5f054f26bacb1de7d456d0dd2187c4e0

include/smomo_interface.h

@@ -70,6 +70,7 @@
 
 #include <sys/types.h>
 #include <ui/Fence.h>
+#include <cutils/native_handle.h>
 
 #include <vector>
 #include <string>
@@ -108,6 +109,7 @@ struct SmomoBufferStats {
   nsecs_t timestamp;  // layer buffer's desired present timestamp
   nsecs_t dequeue_latency;  // last dequeue duration
   int64_t key;  // buffer identity
+  buffer_handle_t buffer_hnd;  // layer buffer handle
 };
 
 enum DisplayType {