drm_hwcomposer: Reformat using clang-format-5.0

Run the new clang-format style over the codebase to make things
compatible.

Change-Id: I267d5070929aaa7965d58655da841402debdcb6c
Signed-off-by: Sean Paul <seanpaul@chromium.org>
diff --git a/autolock.h b/autolock.h
index 3b824e2..006406a 100644
--- a/autolock.h
+++ b/autolock.h
@@ -39,4 +39,4 @@
   bool locked_ = false;
   const char *const name_;
 };
-}
+}  // namespace android