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/drmmode.h b/drmmode.h
index b383168..4cc06b1 100644
--- a/drmmode.h
+++ b/drmmode.h
@@ -18,8 +18,8 @@
 #define ANDROID_DRM_MODE_H_
 
 #include <stdint.h>
-#include <string>
 #include <xf86drmMode.h>
+#include <string>
 
 namespace android {
 
@@ -77,6 +77,6 @@
 
   std::string name_;
 };
-}
+}  // namespace android
 
 #endif  // ANDROID_DRM_MODE_H_