[walletdb] Add missing LOCK() in Recover() for dummyWallet
[walletdb] Add missing LOCK() in Recover() for dummyWallet

stevemyers/bitcoinxt,stevemyers/bitcoinxt,bitcoinxt/bitcoinxt,rromanchuk/bitcoinxt,stevemyers/bitcoinxt,dagurval/bitcoinxt,dagurval/bitcoinxt,dagurval/bitcoinxt,stevemyers/bitcoinxt,stevemyers/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt,bitcoinxt/bitcoinxt,bitcoinxt/bitcoinxt,rromanchuk/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt,stevemyers/bitcoinxt,rromanchuk/bitcoinxt,rromanchuk/bitcoinxt,bitcoinxt/bitcoinxt,dagurval/bitcoinxt,rromanchuk/bitcoinxt,rromanchuk/bitcoinxt