MT#16685 Use versionless kernel package dependencies

There's no need to list specific package versions, since we
provide the according kernel packages through our (release)
repositories anyway. This also simplifies our life because
we can update the kernel packages without having to modify
the metapackages.

Change-Id: Ie899436eb01244ae51c5b52748f8717922236d63

debian/control

@@ -205,8 +205,8 @@ Depends: bsd-mailx | mailx,
          glusterfs-server,
          heartbeat-2 (>= 2.1.3-7~sipwise2) | heartbeat (>= 1:3.0.5+hg12629-1~),
          ldap-utils,
-         linux-headers-3.16-0.bpo.3-amd64 | linux-headers-amd64 (>= 3.14+59),
-         linux-image-3.16-0.bpo.3-amd64 | linux-image-amd64 (>= 3.14+59),
+         linux-headers-amd64,
+         linux-image-amd64,
          monit,
          mysql-client,
          mysql-server,
@@ -327,8 +327,8 @@ Depends: bsd-mailx | mailx,
          heartbeat-2 (>= 2.1.3-7~sipwise2) | heartbeat (>= 1:3.0.5+hg12629-1~),
          kibana,
          ldap-utils,
-         linux-headers-3.16-0.bpo.3-amd64 | linux-headers-amd64 (>= 3.14+59),
-         linux-image-3.16-0.bpo.3-amd64 | linux-image-amd64 (>= 3.14+59),
+         linux-headers-amd64,
+         linux-image-amd64,
          monit,
          mysql-client,
          mysql-server,