[PDF/IDF] UNH virtual1 for LaaS/ONAP usage

[PDF/IDF] UNH virtual1 for LaaS/ONAP usage

In order to fully utilize all available resources (88 CPU threads,
256GB RAM) in Fuel virtual deployments, add basic PDF/IDF files
based on ericsson-virtual1 templates.

IDF is mostly unchanged compared to idf-virtual1 from Ericsson lab.
PDF allocates more disk capacity for the first node (controller role
in Fuel deployments), as well as more vCPUs/RAM for the last 2 nodes
(compute role in Fuel virtual deployments).

While at it, align ericsson vPOD definitions to match the new format
(2 disks should be defined for each compute node; account for HT).

Change-Id: Iac8ee857a3297084ea9f087ba8007950413fda25
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>