clang-format: update latest spec and reformat

Copy the latest format file from the docs repository and apply.

Change-Id: I8bc99b559079b8454b11bff0be5ddfb6e55e71ba
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/phosphor-power-supply/util.hpp b/phosphor-power-supply/util.hpp
index 1614138..f432af0 100644
--- a/phosphor-power-supply/util.hpp
+++ b/phosphor-power-supply/util.hpp
@@ -235,8 +235,8 @@
      */
     GPIOInterface(const std::string& namedGpio);
 
-    static std::unique_ptr<GPIOInterfaceBase>
-        createGPIO(const std::string& namedGpio);
+    static std::unique_ptr<GPIOInterfaceBase> createGPIO(
+        const std::string& namedGpio);
 
     /**
      * @brief Attempts to read the state of the GPIO line.