staging: wilc1000: rework include wilc_oswrapper.h

rework line '#include "wilc_oswrapper.h"'
it does not used anywhere after change own data type to common data type.

Signed-off-by: Dean Lee <dean.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>