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_pool.cc b/runtime/thread_pool.cc
index 8349f33..fb77b84 100644
--- a/runtime/thread_pool.cc
+++ b/runtime/thread_pool.cc
@@ -16,11 +16,11 @@
 
 #include "thread_pool.h"
 
-#include <pthread.h>
-
 #include <sys/mman.h>
-#include <sys/time.h>
 #include <sys/resource.h>
+#include <sys/time.h>
+
+#include <pthread.h>
 
 #include "android-base/stringprintf.h"