drm_hwcomposer: CI: Add -k to clang-tidy make

Find as many clang-tidy errors as possible rather than stopping on the
first one.

Change-Id: I298f5e1e5bd40aa2e96acf9d2196efa72e923055
Signed-off-by: Drew Davenport <ddavenport@google.com>
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f6b5398..446abfe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -49,7 +49,7 @@
   script:
     - rm ${HOME}/aospless/src
     - ln -s ${PWD} ${HOME}/aospless/src
-    - BASE_DIR=${HOME}/aospless make -f .ci/Makefile
+    - BASE_DIR=${HOME}/aospless make -k -f .ci/Makefile
   timeout: 2h
 
 checkstyle: