staging: wlang-ng: Fix block comments style warnings in hfa384x.h

This patch fixes the following checkpatch.pl warning in hfa384x.h:
WARNING: Block comments use * on subsequent lines

No more warnings block comments warnings for this file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>