Both turkey and venison are fine to feed to your dog. Many prey-model raw feeders feed them as the main source of food.
White and dark meat are fine to give. The turkey skin I would remove as fat tends to give animals much looser stools.
Here is a link to some rawfeeding information if you are interested in that as it is quite easy and extremely healthy for the yorkie:
Jane Anderson's Raw Learning Site
Good luck and congratulations on obtaining some excellent meat for your yorkie!