media: camss: Fix vfe_isr_comp_done() documentation

Function name in comment is wrong, and was changed to be
the same as the actual function name.

The comment was changed to kerneldoc format.

Signed-off-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>