staging: vt6656: cleared checkpatch.pl findings in 80211hdr.h

Code cleanup in:
	git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Findings were:
	do not use C99 // comments
	space required after that close brace '}'
	line over 80 characters

Signed-off-by: Andres More <more.andres@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>