[EC2] Sort long, manually-inputted dictionaries

Similar to the work done in #2571, this PR just sorts the remaining manually-inputted dicts in the EC2 script so they are easier to maintain.

Author: Nicholas Chammas <nicholas.chammas@gmail.com>

Closes #2578 from nchammas/ec2-dict-sort and squashes the following commits:

f55c692 [Nicholas Chammas] sort long dictionaries