Kill constants.h and fix some copyright headers.

Change-Id: I51c04d731d6de035328781d8ac134ad6fcf49897
diff --git a/src/compiler_llvm/compiler_llvm.h b/src/compiler_llvm/compiler_llvm.h
index 2c37ac0..b9f8d00 100644
--- a/src/compiler_llvm/compiler_llvm.h
+++ b/src/compiler_llvm/compiler_llvm.h
@@ -18,9 +18,9 @@
 #define ART_SRC_COMPILER_LLVM_COMPILER_LLVM_H_
 
 #include "compiler.h"
-#include "constants.h"
 #include "dex_file.h"
 #include "elf_image.h"
+#include "instruction_set.h"
 #include "macros.h"
 #include "object.h"