[media] v4l: Copy Reserved and bytesused in multi-planar API

Reserved and bytesused fields copied in multi-planar ioctl
handling to the 32bit compatibility layer.

Change-Id: I25711ba92aa6236f28c74067515a594103e8d345
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>