MT#57604 Show all registered devices for subscriber's admin

In the Registered Devices page, subscriber's administrator
has to see all the devices that are registered in the system.

The devices show in the dashboard, instead, are still related
the the personal ones.

Change-Id: I5894200e697c85d4f3a0a599dcd81c2aa6749fa4

src/store/user.js

@@ -389,8 +389,7 @@ export default {
         async loadSubscriberRegistrations ({ commit, dispatch, state, rootGetters }, options) {
             try {
                 const list = await getSubscriberRegistrations({
-                    ...options,
-                    subscriber_id: getSubscriberId()
+                    ...options
                 })
                 commit('setSubscriberRegistrations', list.items)
                 return list.totalCount