Staging: sxg: Commenting style fixes - Pending work

This patch cleans up the comment. Converts the comments to C89 style.
Fixes comment related TODO item.

Signed-off-by: LinSysSoft Sahara Team <saharaproj@linsyssoft.com>
Signed-off-by: Christopher Harrer <charrer@alacritech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>