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/compiler/optimizing/loop_optimization.cc b/compiler/optimizing/loop_optimization.cc
index 422e58d..274f065 100644
--- a/compiler/optimizing/loop_optimization.cc
+++ b/compiler/optimizing/loop_optimization.cc
@@ -16,9 +16,9 @@
 
 #include "loop_optimization.h"
 
-#include "arch/instruction_set.h"
 #include "arch/arm/instruction_set_features_arm.h"
 #include "arch/arm64/instruction_set_features_arm64.h"
+#include "arch/instruction_set.h"
 #include "arch/mips/instruction_set_features_mips.h"
 #include "arch/mips64/instruction_set_features_mips64.h"
 #include "arch/x86/instruction_set_features_x86.h"