DMA-API: media: dt3155v4l: replace dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>