Fixed maybe used uninitialized

GCC 4.9 found that ops[1].op maybe uninitialized in
ArmMir2Lir::GetEasyMultiplyTwoOps, but used unconditionally
in ArmMir2Lir::GenEasyMultiplyTwoOps

Change-Id: Icf8fdf3b888bd54ccb252e95637774889c7a0f9d
1 file changed