Reduce jittering while dragging divider bar

Set vsync id to transactions moving divider bar surface, so those
transactions won't be committed together and result to empty frame while
dragging the divider bar.

Bug: 230050092
Test: manual dump and verified with perfetto trace
Change-Id: Id570e80a908a07113b8e4bd77f38c05e3eee1d0c
1 file changed