media: imx: use setup_timer

Use setup_timer function instead of initializing timer with the
function and data fields.

Generated by: scripts/coccinelle/api/setup_timer.cocci.

Signed-off-by: Cihangir Akturk <cakturk@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>