docker_templates_amd64.yml: Rename image name to ci-amd64-tf-m-ubuntu:jammy-iar

The Jenkins job "CI docker cleanup and image update" will delete the
docker image which can not be pull from the docker hub.
Since the IAR docker image is still in development, not yet to push to
the docker heub. In order not to be deleted, change the tag name to
"ci-amd64-tf-m-ubuntu:jammy-iar" to prevent be deleted by the cleanup
job

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I0866a6461bb0504eb7b01a485928cb38c3791352
diff --git a/docker_templates_amd64.yml b/docker_templates_amd64.yml
index 9e5fa69..08bd768 100644
--- a/docker_templates_amd64.yml
+++ b/docker_templates_amd64.yml
@@ -30,7 +30,7 @@
       - PLANTUML_JAR_PATH : '/usr/share/plantuml/plantuml.jar'
 
 - docker-amd64-tf-m-jammy-iar:
-  docker_image_name: 'trustedfirmware/ci-amd64-tf-m-ubuntu:jammy-iar'
+  docker_image_name: 'ci-amd64-tf-m-ubuntu:jammy-iar'
   labels: 'docker-amd64-tf-m-jammy-iar'
   launch_method: 'launch_ssh'
   ssh: !include docker_ssh_buildslave.yml