For VecInsertLane[Undef] and VecExtractLane, if lane_reg is zero_reg(), the instruction does not actually use any register value. Fixes https://github.com/bytecodealliance/wasmtime/issues/5090
For VecInsertLane[Undef] and VecExtractLane, if lane_reg is zero_reg(), the instruction does not actually use any register value. Fixes https://github.com/bytecodealliance/wasmtime/issues/5090