Update .clang-format to latest version from docs

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Change-Id: Ie6e7f43e7554429704dca86b21320c90aed18791
diff --git a/power-supply/average.hpp b/power-supply/average.hpp
index 5fdf0b8..bbbda54 100644
--- a/power-supply/average.hpp
+++ b/power-supply/average.hpp
@@ -1,7 +1,8 @@
 #pragma once
-#include <functional>
 #include <org/open_power/Sensor/Aggregation/History/Average/server.hpp>
 
+#include <functional>
+
 namespace phosphor
 {
 namespace power