Use "integrationtest" as the IT profile in maven

Fix the pom to use "integrationtest" as the IT profile name
This runs both Pax Exam IT and OVS IT in the same profile.

Change-Id: Ic0d5f877ea5b0315f2e6ccec137f656d8bf11fab
Signed-off-by: Dave Tucker <djt@redhat.com>