updated dockerfiles for grpc builds for powerPC compilation~ #1086

Job	Run time
Publish Image (file-metrics-collector, cmd/metricscollector/v1beta1/file-metricscollector/Dockerf... / Publish Image	7m 24s
Publish Image (katib-controller, cmd/katib-controller/v1beta1/Dockerfile) / Publish Image	13m 53s
Publish Image (katib-db-manager, cmd/db-manager/v1beta1/Dockerfile) / Publish Image	7m 18s
Publish Image (katib-ui, cmd/ui/v1beta1/Dockerfile) / Publish Image	47m 23s
Publish Image (tfevent-metrics-collector, cmd/metricscollector/v1beta1/tfevent-metricscollector/D... / Publish Image	8m 30s
	1h 24m 28s

Provide feedback