Run clang-format on the entire repo

This patch clang-formats the entire repo. Third-party code is
excluded.

I needed to fix up the .clang-format file so that all the header
includes are ordered properly. I could have sworn that it used to work
without the extra modification, but I guess not.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I64bb9f2c795401393f9dfe2fefc4f04cb36b52f6
diff --git a/aos/realtime.cc b/aos/realtime.cc
index 2f5e1d9..14849a4 100644
--- a/aos/realtime.cc
+++ b/aos/realtime.cc
@@ -15,10 +15,11 @@
 #include <cstdlib>
 #include <cstring>
 
-#include "aos/thread_local.h"
 #include "glog/logging.h"
 #include "glog/raw_logging.h"
 
+#include "aos/thread_local.h"
+
 DEFINE_bool(
     die_on_malloc, true,
     "If true, die when the application allocates memory in a RT section.");