Fix ARM Audio issues and its EEPROM persistence

[drashna]

Description

While investigating a bug with Audio Click on ARM... I ran into the fact that ARM Audio was never actually updated to persist in EEPROM storage! The code was there, but commented out.

I've updated the audio code to support EEPROM if STM32 EEPROM support is enabled, as well as fixed the clicky issue on ARM.

I've also updated the files that I've touched to conform to the QMK Coding conventions, but I can revert those changes if needed.

I've also employed Drashna CI to ensure that these changes work. And from what I can tell, yes they do.

Types of changes

• Core
• Bugfix
• New Feature
• Enhancement/Optimization
• Keyboard (addition or update)
• Keymap/Layout/Userspace (addition or update)
• Documentation

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document. (https://docs.qmk.fm/#/contributing)
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[pelrun]

I've no problems with the formatting changes (maybe because I've been doing the same thing in my PR's...)

You can turn on "ignore whitespace changes" in the diff settings at the top of the page and most of the noise disappears, if it's obscuring the actual code changes. In this instance, it works pretty well.

[drashna]

You can turn on "ignore whitespace changes" in the diff settings at the top of the page and most of the noise disappears, if it's obscuring the actual code changes. In this instance, it works pretty well.

Ooo, neat! I didn't know that, actually! :)

I've no problems with the formatting changes (maybe because I've been doing the same thing in my PR's...)

Thanks. :)

And yeah, I would like to see it all updated, but I don't think it's reasonable to go and just do that for the entire project. Not to mention all the time it would take. Slow, incremental updates is awesome.

[pelrun]

I almost always have "ignore whitespace changes" turned on in git when I'm making commits. Sometimes it's a little confusing when git tells me a file is modified but the diff is empty, but it's so much easier to see the actual bones of the commit when you don't have incidental indentation changes making a giant mess.

[mechmerlin]

Thanks!