LTS Refresh: Merge upto 60e58766e7d3423e0ff9c6e545b6374015d0903a (buildnumber: 18867.90.0) from main-R121 to release-R121.

BUG=b/411674189,b/403143870,b/398906385
TEST=presubmit
RELEASE_NOTE=LTS Refresh from main-R121 to release-R121

Change-Id: I1b3d1a4565fac81173264665b92a408a3dd8d03a
Signed-off-by: Robert Kolchmeyer <rkolchmeyer@google.com>

PRESUBMIT.cfg

diff --git a/PRESUBMIT.cfg b/PRESUBMIT.cfg
index bdf4185..6b7b1c7 100644
--- a/PRESUBMIT.cfg
+++ b/PRESUBMIT.cfg
@@ -2,6 +2,9 @@
 cros lint = ../../chromite/bin/cros lint ${PRESUBMIT_FILES}
 
 [Hook Overrides]
+# Make sure cos_patch trailer is present
+cos_patch_trailer_check: true
+
 # Make sure Manifest files are valid.
 manifest_check: true