containerd: Add CPE entry

BUG=b/186135168
TEST=run presubmit and check result CPE file
RELEASE_NOTE=None

cos-patch: bug
Change-Id: I8ef8709d58282b520939fbc8c249dfecce7a7775
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/15910
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Dexter Rivera <riverade@google.com>
diff --git a/overlay-lakitu/app-emulation/containerd/metadata.xml b/overlay-lakitu/app-emulation/containerd/metadata.xml
index 9513270..cbca972 100644
--- a/overlay-lakitu/app-emulation/containerd/metadata.xml
+++ b/overlay-lakitu/app-emulation/containerd/metadata.xml
@@ -18,5 +18,6 @@
 	</maintainer>
 	<upstream>
 		<remote-id type="github">docker/containerd</remote-id>
+		<remote-id type="cpe">cpe:/a:docker:docker</remote-id>
 	</upstream>
 </pkgmetadata>