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/utils.cc b/runtime/utils.cc
index c4b0441..ffa9d45 100644
--- a/runtime/utils.cc
+++ b/runtime/utils.cc
@@ -23,6 +23,7 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
+
 #include <memory>
 
 #include "android-base/stringprintf.h"
@@ -38,9 +39,9 @@
 #include "utf-inl.h"
 
 #if defined(__APPLE__)
-#include "AvailabilityMacros.h"  // For MAC_OS_X_VERSION_MAX_ALLOWED
-#include <sys/syscall.h>
 #include <crt_externs.h>
+#include <sys/syscall.h>
+#include "AvailabilityMacros.h"  // For MAC_OS_X_VERSION_MAX_ALLOWED
 #endif
 
 #if defined(__linux__)