Add GOPPC64 env avriable to go building jobs

[Rajalakshmi-Girish]

• Have added a preset label to enable the environment variable GOPPC64=power9 for all the go binary building jobs.

  1. periodic-golang-master-build-ppc64le
  2. postsubmit-kubernetes-build-golang-master-ppc64le
  3. postsubmit-master-golang-kubernetes-unit-test-ppc64le
  4. postsubmit-os-kubernetes-build-golang-master-ppc64le
  5. postsubmit-os-origin-build-golang-master-ppc64le
  6. postsubmit-master-golang-etcd-build-test-ppc64le
  7. periodic-etcd-test-ppc64le
  8. periodic-kubernetes-unit-test-ppc64le
  9. periodic-kubernetes-containerd-e2e-node-tests-ppc64le

• Also have removed the export of the PATH variable to add /usr/local/go/bin and $GOPATH/bin to the PATH value. As the all-in-one:0.6 image has these values already added to PATH.

  • https://github.com/ppc64le-cloud/test-infra/blob/master/images/all-in-one/Dockerfile#L47
  • https://github.com/ppc64le-cloud/test-infra/blob/master/images/all-in-one/Dockerfile#L113

@mkumatag I have verified if the value is being picked up while binary building by running a few jobs by doing strings <binary_name> | grep GOPPC

Also have checked in a couple of runs if the removal of PATH export is not creating any failure. Any idea why we had to include these PATH exports inspite of having these values set in all-in-one image from the beginning?

[ppc64le-cloud-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mkumatag, Rajalakshmi-Girish

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[ppc64le-cloud-bot]

@Rajalakshmi-Girish: Updated the following 2 configmaps:

• config configmap in namespace prow at cluster default using the following files:
  • key config.yaml using file config/prow/config.yaml
• job-config configmap in namespace prow at cluster default using the following files:
  • key test-etcd-periodics.yaml using file config/jobs/periodic/etcd/test-etcd-periodics.yaml
  • key build-golang-periodics.yaml using file config/jobs/periodic/golang/build-golang-periodics.yaml
  • key test-kubernetes-periodics.yaml using file config/jobs/periodic/kubernetes/test-kubernetes-periodics.yaml
  • key etcd-postsubmit.yaml using file config/jobs/ppc64le-cloud/builds/etcd-postsubmit.yaml
  • key kubernetes-postsubmit.yaml using file config/jobs/ppc64le-cloud/builds/kubernetes-postsubmit.yaml
  • key openshift-postsubmit.yaml using file config/jobs/ppc64le-cloud/builds/openshift-postsubmit.yaml

In response to [this](https://github.com/ppc64le-cloud/test-infra/pull/458): >- Have added a preset label to enable the environment variable `GOPPC64=power9` for all the go binary building jobs. > > 1. periodic-golang-master-build-ppc64le > 2. postsubmit-kubernetes-build-golang-master-ppc64le > 3. postsubmit-master-golang-kubernetes-unit-test-ppc64le > 4. postsubmit-os-kubernetes-build-golang-master-ppc64le > 5. postsubmit-os-origin-build-golang-master-ppc64le > 6. postsubmit-master-golang-etcd-build-test-ppc64le > 7. periodic-etcd-test-ppc64le > 8. periodic-kubernetes-unit-test-ppc64le > 9. periodic-kubernetes-containerd-e2e-node-tests-ppc64le > >- Also have removed the export of the PATH variable to add `/usr/local/go/bin` and `$GOPATH/bin` to the PATH value. As the `all-in-one:0.6` image has these values already added to PATH. > - https://github.com/ppc64le-cloud/test-infra/blob/master/images/all-in-one/Dockerfile#L47 > - https://github.com/ppc64le-cloud/test-infra/blob/master/images/all-in-one/Dockerfile#L113 > >@mkumatag I have verified if the value is being picked up while binary building by running a few jobs by doing `strings | grep GOPPC` > >Also have checked in a couple of runs if the removal of PATH export is not creating any failure. Any idea why we had to include these PATH exports inspite of having these values set in `all-in-one` image from the beginning? Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.