Enable DES in openssl to fix build failure raised since commit
a83d41867c
Fixes:
- http://autobuild.buildroot.org/results/c10800fde50b123809557ed50e0a86acb59404a4
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>