Ad Led_IR pin name to ATOM Lite

[carson-coder]

Try to fix issue #8738 by adding gpio 12 as the IR light and D12

[carson-coder]

This is untested because I don't have the atom_lite so this may want to be tested before merging

[dhalbert]

@sctv is this what you had in mind?

@carson-coder two things:

1. If you do this against 8.2.x instead of main then it can get into the next 8.2.x release. You would make the change off a branch that is branched from 8.x.2. The board is available in 8.2.x. Then we will merge it to main when we catch up main to 8.2.x.
2. You made this change on your main branch. It's generally better to create a new branch off the dev branch (in this case, either main or 8.2.x). Otherwise your main or 8.2.x branch will get out of sync with the adafruit upstream repo that you forked from. See https://learn.adafruit.com/contribute-to-circuitpython-with-git-and-github/always-work-on-a-branch for a discussion.

[carson-coder]

Ok. I will try to make a branch to change 8.2.x and change or make a new pull request.