Add container YAML for DMI

- Step 6 of the release process to add the container yaml file and
  release 1.2.1 of ncmp-dmi-plugin docker image

Issue-ID: CPS-1296
Change-Id: I19171d408dac580cc4129bc4efbec0a52042fedc
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/releases/1.2.1-container.yaml b/releases/1.2.1-container.yaml
new file mode 100644
index 0000000..454f1b6
--- /dev/null
+++ b/releases/1.2.1-container.yaml
@@ -0,0 +1,9 @@
+distribution_type: container
+container_release_tag: 1.2.1
+project: cps/ncmp-dmi-plugin
+log_dir: cps-ncmp-dmi-plugin-maven-docker-stage-master/508/
+ref: 667818457db7ca29a6d3d6f7404be9e048eb9c02
+tag_release: true
+containers:
+  - name: 'ncmp-dmi-plugin'
+    version: '1.2.1-20221005T101747Z'