add chamber-level coordinates to RPC PRD

Add the chamber-level coordinates to xAOD RPC PRDs in the phase-2 muon reco in order to fit into the ACTS interface of the hough transform. Also fix verbosity of printouts. CC @jojungge

MuonSpectrometer/MuonPhaseII/Event/xAOD/xAODMuonPrepData/Root/RpcStripAuxContainer_v1.cxx

@@ -25,6 +25,7 @@ RpcStripAuxContainer_v1::RpcStripAuxContainer_v1()
     PRD_AUXVARIABLE(triggerInfo);
     PRD_AUXVARIABLE(ambiguityFlag);
     PRD_AUXVARIABLE(timeOverThreshold);
+    PRD_AUXVARIABLE(stripPosInStation);
 
     PRD_AUXVARIABLE(stripNumber);
     PRD_AUXVARIABLE(gasGap);
@@ -33,4 +34,4 @@ RpcStripAuxContainer_v1::RpcStripAuxContainer_v1()
     
 }
 }  // namespace xAOD
-#undef PRD_AUXVARIABLE
\ No newline at end of file
+#undef PRD_AUXVARIABLE