[Wallet] use constant for bip32 hardened key limit backport Conflicts: 	src/wallet/wallet.cpp
[Wallet] use constant for bip32 hardened key limit
backport
Conflicts:
	src/wallet/wallet.cpp

faircoin/faircoin,faircoin/faircoin2,faircoin/faircoin,faircoin/faircoin2,faircoin/faircoin,faircoin/faircoin2,faircoin/faircoin2,faircoin/faircoin,faircoin/faircoin,faircoin/faircoin2,faircoin/faircoin2,faircoin/faircoin