ART: Include cleanup

Let clang-format reorder the header includes.

Derived with:

* .clang-format:
 BasedOnStyle: Google
 IncludeIsMainRegex: '(_test|-inl)?$'

* Steps:
 find . -name '*.cc' -o -name '*.h' | xargs sed -i.bak -e 's/^#include/ #include/' ; git commit -a -m 'ART: Include cleanup'
 git-clang-format -style=file HEAD^
 manual inspection
 git commit -a --amend

Test: mmma art
Change-Id: Ia963a8ce3ce5f96b5e78acd587e26908c7a70d02
diff --git a/runtime/thread.h b/runtime/thread.h
index e1102ed..776096a 100644
--- a/runtime/thread.h
+++ b/runtime/thread.h
@@ -17,12 +17,13 @@
 #ifndef ART_RUNTIME_THREAD_H_
 #define ART_RUNTIME_THREAD_H_
 
+#include <setjmp.h>
+
 #include <bitset>
 #include <deque>
 #include <iosfwd>
 #include <list>
 #include <memory>
-#include <setjmp.h>
 #include <string>
 
 #include "arch/context.h"