Staging: rtl8192u: fix comments and space coding style issue in dot11d.h

This is a patch to the dot11d.h file that fixed up a comments and space
Errors found by the checkpatch.pl tools

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>