drm_hwcomposer: CI: Raise clang-tidy level from NONE to COARSE for *.h

To improve CI coverage.

Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/drm/VSyncWorker.h b/drm/VSyncWorker.h
index 74ff487..67aaa16 100644
--- a/drm/VSyncWorker.h
+++ b/drm/VSyncWorker.h
@@ -20,9 +20,9 @@
 #include <hardware/hardware.h>
 #include <hardware/hwcomposer.h>
 #include <hardware/hwcomposer2.h>
-#include <stdint.h>
 
 #include <atomic>
+#include <cstdint>
 #include <functional>
 #include <map>