Restart openafs-client after dkms package is installed

Again, ubuntu-trusty is fine, but xenial seems to be a little
different.  The openafs-client will start the service, but not
fully start because kernel modules are missing.

So, in this case, we'll kick the openafs-client service, once dkms
package has finished compiling.

Change-Id: I2cfcecc03e23ad9e906dbf9a4f058f0984084b37
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

manifests/client.pp

@@ -112,6 +112,7 @@ class openafs::client (
     }
     package { $openafs_dkms:
       ensure => present,
+      notify => Service['openafs-client'],
     }
   }