[MIPS] Add Fast Art interpreter for Mips32.

Change-Id: I6b9714dc8c01b8c9080bcba175faec1d2de08f8f
diff --git a/runtime/interpreter/mterp/mips/op_int_to_byte.S b/runtime/interpreter/mterp/mips/op_int_to_byte.S
new file mode 100644
index 0000000..77314c62
--- /dev/null
+++ b/runtime/interpreter/mterp/mips/op_int_to_byte.S
@@ -0,0 +1 @@
+%include "mips/unop.S" {"preinstr":"sll a0, a0, 24", "instr":"sra a0, a0, 24"}