Ey, yo; that bit about Litr is from the writings of Snorri the Christian Apologist, and may be a mistranslation of Lütr, who was a jötun; it's often considered just flavor from Snorri, who was desperate to convert those who were true to the Æsir into christians.
In other words, he was a scavenger dressed as a Northman; his words are suspect.