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/DrmEncoder.h b/drm/DrmEncoder.h
index 4c01bc1..b130b7d 100644
--- a/drm/DrmEncoder.h
+++ b/drm/DrmEncoder.h
@@ -17,9 +17,9 @@
 #ifndef ANDROID_DRM_ENCODER_H_
 #define ANDROID_DRM_ENCODER_H_
 
-#include <stdint.h>
 #include <xf86drmMode.h>
 
+#include <cstdint>
 #include <set>
 #include <vector>