Official .clang-format support

There are a couple files that have been copied directly from the
Hostboot project, which have not been updated to be included in the
libhei code yet. They will be temporarily ignored until they are
updated.

Change-Id: I5c16a68acc6854ade0763fe64647b650b7863706
Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
diff --git a/src/register/hei_operator_register.hpp b/src/register/hei_operator_register.hpp
index ee2519c..6161ed1 100755
--- a/src/register/hei_operator_register.hpp
+++ b/src/register/hei_operator_register.hpp
@@ -1,3 +1,4 @@
+// clang-format off
 #pragma once
 
 #include <algorithm>
@@ -437,4 +438,4 @@
 };
 
 } // end namespace libhei
-
+// clang-format on