media: coda: Clarify interrupt registered name

Make interrupt naming more consistent by using a common
pattern for video and jpeg interrupts.

With this commit, interrupts are shown as:

29:          0          0       GPC  12 Level     coda-video
30:          0          0       GPC   3 Level     coda-jpeg

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Acked-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>