Implement System.arraycopy intrinsic for arm.

Change-Id: I58ae1af5103e281fe59fbe022b718d6d8f293a5e
diff --git a/compiler/utils/arm/assembler_arm32.cc b/compiler/utils/arm/assembler_arm32.cc
index f7772ae..9ae7bb6 100644
--- a/compiler/utils/arm/assembler_arm32.cc
+++ b/compiler/utils/arm/assembler_arm32.cc
@@ -48,6 +48,11 @@
   return false;
 }
 
+bool Arm32Assembler::ShifterOperandCanAlwaysHold(uint32_t immediate) {
+  ShifterOperand shifter_op;
+  return ShifterOperandCanHoldArm32(immediate, &shifter_op);
+}
+
 bool Arm32Assembler::ShifterOperandCanHold(Register rd ATTRIBUTE_UNUSED,
                                            Register rn ATTRIBUTE_UNUSED,
                                            Opcode opcode ATTRIBUTE_UNUSED,