update openj9 build base docker image (#2232)
update openj9 build base docker image (#2232)

Signed-off-by: Dennis Adjei-Baah <7965a665163253a12f43312bf69d07012a113a2a@buoyant.io>
linkerd/linkerd,BuoyantIO/linkerd,linkerd/linkerd,linkerd/linkerd,BuoyantIO/linkerd