build: update clang-format

Update to the latest OpenBMC clang-format.

Change-Id: I19424fe32f32900d21272e343a5bda8675edbe60
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/ext_interface.cpp b/ext_interface.cpp
index a5c1c3c..8e6db17 100644
--- a/ext_interface.cpp
+++ b/ext_interface.cpp
@@ -1,6 +1,7 @@
 #include <ext_interface.hpp>
 #include <phosphor-logging/log.hpp>
 #include <sdbusplus/server.hpp>
+
 #include <string>
 
 // Mapper