multi: rename nolint:lll to nolint:ll

Find and replace all nolint instances refering to the `lll` linter and
replace with `ll` which is the name of our custom version of the `lll`
linter which can be used to ignore log lines during linting.

The next commit will do the configuration of the custom linter and
disable the default one.

channeldb/migration/lnwire21/onion_error.go

@@ -55,7 +55,7 @@ type FailCode uint16
 // The currently defined onion failure types within this current version of the
 // Lightning protocol.
 //
-//nolint:lll
+//nolint:ll
 const (
 	CodeNone                             FailCode = 0
 	CodeInvalidRealm                              = FlagBadOnion | 1