Add entry for compliance repo

BUG=b/193069333
TEST=repo sync
RELEASE_NOTE=None

Change-Id: I8179187f6e2c3bc70b7ebd3059ebf9e7a96fcc6a
Reviewed-on: https://cos-review.googlesource.com/c/cos/manifest/+/19132
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Anil Altinay <aaltinay@google.com>
diff --git a/external_full.xml b/external_full.xml
index 7c4e151..1eb6875 100644
--- a/external_full.xml
+++ b/external_full.xml
@@ -83,6 +83,9 @@
   <project path="src/platform/vboot_reference"
            name="third_party/platform/vboot_reference"
            revision="refs/heads/main" />
+  <project path="src/compliance"
+           name="cos/compliance"
+           revision="refs/heads/main" />
   <project path="src/repohooks"
            name="cos/repohooks" />
   <project path="src/platform/cobble"