We have no evidence as to how early medieval/viking-era Scandinavians viewed homosexuality, save for a few (very contentious) interpretations of Óðins sexuality based on his practice of seiðr. We have a 12th century legal code (Grágas) from Iceland that says (essentially) being the passive partner in a homosexual relationship is ergi or dishonourable, and some 13th century and later sagas that might reinforce that point, but no conclusive evidence from before the Conversion.

Sorry to point the question back at you but how did the Vikings and Celts view homosexuality?