We need these changes because SMP keys may have more information
associated with them, for example, in the LTK case, it has an
encrypted diversifier (ediv) and a random number (rand).

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>