The dev_attrs field of struct class is going away soon, dev_groups
should be used instead.  This converts the ieee802154 class code to use
the correct field.
Acked-by: NDavid S. Miller <davem@davemloft.net>
Cc: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>