IEC jobs in Akraino Lab

In this patch, some modifications are completed based on the R2
requirements.
1. The IEC type is added into name of jenkins jobs.
2. The new IEC-type1 job is added into Akraino CI/CD.
   The IEC-type1 job is designed to verify the IEC task on Edge
   node. In this job, 2 VMs will be started for simulating the
   Low-power remote-edge nodes in the host. After that, the IEC
   basic infrastructure will be deployed on it for verifying the
   user case.

Signed-off-by: jingzhao <Jingzhao.Ni@arm.com>
Change-Id: Ida4a22a1c39a8171f2fd48cde79aa8dd7008b707