change derivation of ln channel keys: use hardened paths
change derivation of ln channel keys: use hardened paths

spesmilo/electrum,vialectrum/vialectrum,wakiyamap/electrum-mona,pooler/electrum-ltc,spesmilo/electrum,pooler/electrum-ltc,wakiyamap/electrum-mona,pooler/electrum-ltc,spesmilo/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,vialectrum/vialectrum,wakiyamap/electrum-mona,vialectrum/vialectrum,spesmilo/electrum