webadmin: make it more obvious that thread as cores is enabled

Users are confused when the count threads as cores is enabled,
but the threads per socket still shows the same value. This
patch changes the UI a adds also the threads count to the
"Cores per socket" field.

Change-Id: I2fb9d28f3b125a9104fec5f3a887efdbf711b037
Bug-Url: https://bugzilla.redhat.com/1082681
Signed-off-by: Jiri Moskovcak <jmoskovc@redhat.com>