lnwallet: use current height as FundingBrodcastHeight during funding flow
lnwallet: use current height as FundingBrodcastHeight during funding flow

aakselrod/lnd,aakselrod/lnd,ddustin/lnd,ddustin/lnd,AndrewSamokhvalov/lnd,AndrewSamokhvalov/lnd,LightningNetwork/lnd,LightningNetwork/lnd