[media] saa7134: remove dev from saa7134_fh, use saa7134_fh for empress node
Use the saa7134_fh struct for the empress video node as well, drop the dev pointer from that struct since we can use drvdata for that. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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