staging: media: atomisp: Fix typos and formatting in headers

staging: media: atomisp: Fix typos and formatting in headers

Update block and inline comments to follow kernel
commenting conventions, fix typos and wording, remove
redundant comments and reformat long comments for clarity
and line length consistency.

Although some comments used the /** ... */ style, they are not
kernel-doc comments and are converted to normal comment style.

No functional changes are intended.

Signed-off-by: Hamdan Khan <hamdankhan212@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>