barbican: Set kek for simple_crypto_plugin

Barbican removed the default kek and now requires the option.

Depends-on: https://review.opendev.org/941577
Change-Id: I5fb6176aae6687913b868088a9f2c9b0f79a4741
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

manifests/barbican.pp

@@ -87,5 +87,8 @@ class openstack_integration::barbican {
   }
   class { 'barbican::worker': }
   class { 'barbican::retry_scheduler': }
+  class { 'barbican::plugins::simple_crypto':
+    simple_crypto_plugin_kek => 'dGhpcnR5X3R3b19ieXRlX2tleWJsYWhibGFoYmxhaGg=',
+  }
 
 }