Thanks to forum member, Lizziej, who has found the official Emmy Ballots.
Little Dorrit is on the ballot for Outstanding Miniseries. Matthew Macfadyen is on the ballot for Little Dorrit as Outstanding Lead Actor in a Miniseries or Movie. Claire Foy is on the ballot for Little Dorrit as Outstanding Lead Actress in a Miniseries or Movie. Other actors and actresses from Little Dorrit include Andy Serkis, Tom Courtenay, and Judy Parfitt
You can view the full article on the LA Times. The program ballot can be viewed here while the performers ballot can be seen here.
Remember that being on the ballot does not mean it has reached the final nomination!