Staging: sxg: Firmware updates

* Add new firmware and remove all firmware file.
* Add a switch to load either debug or free firmware.

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