package/netatalk: requires CAST and DES support in openssl

package/netatalk: requires CAST and DES support in openssl

Enable CAST and DES in openssl to fix build failures raised since commit
a83d41867c8d69a77d5cd0a665aa216af5340359

Fixes:
 - http://autobuild.buildroot.org/results/b7347e3e4b828901dcb954f7cc37b712b80ac49b
 - http://autobuild.buildroot.org/results/453c10ff24ef48f1340ec91412e504fe604033cf

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[yann.morin.1998@free.fr:
  - move the 'select' of the options closer to the 'select' on openssl
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>