Staging: wlan-ng: hfa384x.h: fixed sparse warning

Fields of hfa384x_commsquality were used as __le16 but defined as u16.
Type is changed to __le16.

Signed-off-by: Vitali Liaukovich <vitali.liaukovich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>