New PTL for Pharos

This patch is used for voting on the new Pharos PTL. After the nomation
period [1] has ended, there is only one valid candidate [2].

In order to complete the new PTL election process, all Pharos committers
shall review and cast a vote[+1, -1]. This voting period ends in a week
for now on by 23rd March.

[1] https://lists.opnfv.org/g/infra-wg/message/179
[2] https://lists.opnfv.org/g/infra-wg/message/180

Change-Id: If9a2ba60ea69bd2dab92c22ec8cfc7895aa5ce50
Signed-off-by: Julien <zhang.jun3g@zte.com.cn>