CI: Re-enable maintainer check

At this point we have all of the defconfigs maintained again, so
re-enable the check to prevent further regressions.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index 6f91553..eb9353f 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -91,7 +91,7 @@
       options: $(container_option)
     steps:
       - script: |
-          ./tools/buildman/buildman --maintainer-check || exit 0
+          ./tools/buildman/buildman --maintainer-check
 
   - job: tools_only
     displayName: 'Ensure host tools and env tools build'
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6decdfd..1e11b5a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -177,7 +177,7 @@
 Check for configs without MAINTAINERS entry:
   extends: .testsuites
   script:
-    - ./tools/buildman/buildman --maintainer-check || exit 0
+    - ./tools/buildman/buildman --maintainer-check
 
 # Ensure host tools build
 Build tools-only and envtools: