message: Check min ring size in AddAnonInputs()
  This does not change consensus. Trx validation is done in ProcessAnonTransaction()
diff: @@ -4352,6 +4352,14 @@ bool CWallet::AddAnonInputs(int rsType, int64_t nTotalOut, int nRingSize, std::v
  if (fDebugRingSig)
  LogPrintf("AddAnonInputs() %d, %d, rsType:%d\n", nTotalOut, nRingSize, rsType);
  + if (nRingSize < (int)MIN_RING_SIZE
  + ||nRingSize > (Params().IsProtocolV3(nBestHeight) ? (int)MAX_RING_SIZE : (int)MAX_RING_SIZE_OLD))
  + {
  + sError = tfm::format("Ringsize %d not in range [%d, %d]: ", nRingSize, MIN_RING_SIZE, MAX_RING_SIZE);
  + return false;
  + }
  +
  +
  std::list<COwnedAnonOutput> lAvailableCoins;
  if (ListUnspentAnonOutputs(lAvailableCoins, true) != 0)
  {
  