ci: skip headers check in code-coverage jobs

Change-Id: I73f5cc04cc4b8bf69db66e690d9d4117239a0961
diff --git a/.jenkins b/.jenkins
index 52b94c5..0f40e00 100755
--- a/.jenkins
+++ b/.jenkins
@@ -26,7 +26,11 @@
 esac
 
 export CACHE_DIR=${CACHE_DIR:-/tmp}
-[[ $JOB_NAME == *"code-coverage" ]] && export DISABLE_ASAN=yes
+
+if [[ $JOB_NAME == *"code-coverage" ]]; then
+    export DISABLE_ASAN=yes
+    export DISABLE_HEADERS_CHECK=yes
+fi
 
 for file in .jenkins.d/*; do
     [[ -f $file && -x $file ]] || continue