the two have no corelation
the nazi's adopted the swastica as a symbol to remind them of the Aryan people who were their ancestors. the entire premise of the nazi party was the trying to return germany to its greatness under the aryans. the same Aryans invaded india, and indian culture absorbed a large amount of their beleifs, including the swastica. the fact tht a swastica can be found on budda's heart is of little relevance/