Staging: otus: fix strcpy() overflow

wrq->name is only 16 characters long but "IEEE 802.11-MIMO" is 16
characters + a NULL character, so it's too long.  This patch changes it
to "IEEE 802.11abgn".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>