Fix PatternMatch for WaveShuffleIndex

For WaveShuffleIndex we need to make sure we set the subspan use for the lane as well as the value. This ultimately ensures later on in vISA that we set the users to NoMask

IGC/Compiler/CISACodeGen/PatternMatchPass.cpp

@@ -4999,6 +4999,7 @@ namespace IGC
         {
             //only if helperLaneMode==1, we enable helper lane under some shuffleindex cases (not for all cases).
             HandleSubspanUse(I.getArgOperand(0), IsSourceOfSample(&I));
+            HandleSubspanUse(I.getArgOperand(1), IsSourceOfSample(&I));
             HandleSubspanUse(&I, IsSourceOfSample(&I));
         }
         return MatchSingleInstruction(I);