userportal: basic view - update disks data on refresh

Userportal -> basic view -> details panel:
update disks data on force refresh
(when hitting the refresh button).

Change-Id: Iec95c1ff5ee31a4ba674053e2b907866e6cf77ca
Bug-Url: https://bugzilla.redhat.com/1001172
Signed-off-by: Daniel Erez <derez@redhat.com>