media: staging: media: atomisp: clean up block comment style issues

Clean up block comment style issues to follow kernel coding style
and clear checkpatch warnings.

WARNING: Block comments use * on subsequent lines
WARNING: Block comments use a trailing */ on a separate line

Link: https://lore.kernel.org/linux-media/20200926205103.189041-1-gary@apache.org


Signed-off-by: Gary Yao <gary@apache.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>