media: coda: jpeg: add JPEG register definitions for CODA960

The CODA960 JPEG codec is controlled directly from the host, there is no
support in the BIT processor firmware. This patch adds the necessary
register definitions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>