clang-format: Update to match docs repo

Update the .clang-format file.
Now includes header sorting and updating PointerAlignment.

Change-Id: I5c7690d8d83cdebe26ff3a73b90a2a8c17dd8054
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/ubi/flash.cpp b/ubi/flash.cpp
index 4d6d153..ffa9348 100644
--- a/ubi/flash.cpp
+++ b/ubi/flash.cpp
@@ -1,6 +1,7 @@
-#include "activation.hpp"
 #include "config.h"
 
+#include "activation.hpp"
+
 namespace phosphor
 {
 namespace software