Add back missing swift proxy server image which was removed in Swift
shared image change.
TrivialFix
Change-Id: Icf13d4a1550192f73e266a6c6aa74f604ee4e77a
Get rid of swfit children images by share the same image in the swift
account, swift object and swift container services
Closes-Bug: #1534476
Change-Id: I929689f93b56396a41b19fda46e4679c4de84ca1