media: xilinx: dma: Workaround for bytesperline

Workaround for bytesperline bug from mplayer. The mplayer (svn r34540)
that was installed in Ubuntu 12.10 and used for demo uses the bytes per
line value from V4L2 drivers without initialization. Since mplayer
doesn't change this value, mplayer could use the wrong bytes per line
value, for example, the default value (1920 * 4) for different
resolution (640x480).

The best way is to send a patch to the mplayer mailing list, and this
doesn't intend to be included in the kernel tree.

Signed-off-by: Hyun Kwon <hyunk@xilinx.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>