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/worker.h b/worker.h
index 8f6295b..7909038 100644
--- a/worker.h
+++ b/worker.h
@@ -77,5 +77,5 @@
   bool exit_;
   bool initialized_;
 };
-}
+}  // namespace android
 #endif