multi: move 3 vars from walletrpc+lncfg to chanfunding

This commit moves the constants LndInternalLockID and
DefaultLockDuration from the walletrpc package to the chanfunding
package, moves DefaultReservationTimeout from lncfg to chanfunding,
and also updates the lncli package with the new location.

cmd/lncli/walletrpc_active.go

@@ -22,6 +22,7 @@ import (
 	"github.com/btcsuite/btcd/wire"
 	"github.com/lightningnetwork/lnd/lnrpc"
 	"github.com/lightningnetwork/lnd/lnrpc/walletrpc"
+	"github.com/lightningnetwork/lnd/lnwallet/chanfunding"
 	"github.com/urfave/cli"
 )
 
@@ -1537,7 +1538,7 @@ func releaseOutput(ctx *cli.Context) error {
 		return fmt.Errorf("error parsing outpoint: %w", err)
 	}
 
-	lockID := walletrpc.LndInternalLockID[:]
+	lockID := chanfunding.LndInternalLockID[:]
 	lockIDStr := ctx.String("lockid")
 	if lockIDStr != "" {
 		var err error