webadmin: Adding port column to brick clients details

'Port' column is added to the 'Clients' section of
Brick advanced details popup.

Change-Id: I1d87ee55effbdbb8f5aeedc2c757981d9759f0e6
Bug-Url: https://bugzilla.redhat.com/919371
Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>