webadmin: Replaced "Profiles" by "vNIC Profiles"

This to reduce ambiguity between networks and profiles.

Change-Id: Ib640c51db9528855c20ea6c0e2dedcb12b83c89a
Bug-Url: https://bugzilla.redhat.com/1028515
Signed-off-by: Lior Vernia <lvernia@redhat.com>