Set some default configurations for GMMK Pro

[andrebrait]

Description

Adding a few configurations as defaults for the GMMK Pro which I think make sense either because they're either

1. The defaults on the stock firmware, or
2. Useful for a keyboard focused on enthusiasts and gamers, or
3. The same as the default value on QMK, but I tried to make them explicit here

Maybe it would be up to @glorious-qmk to check if these changes make sense for the GMMK Pro, but I think at least setting USB_POLLING_INTERVAL_MS to 1 does.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• 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).

[andrebrait]

@drashna I ended up opening this PR against master but I guess I should've gone for develop? Just asking because I see the other activity for the GMMK Pro is on develop

[drashna]

This should be okay. It will get merged into develop, if/when it's merged into master. And given the type of change, it shouldn't cause any issues.

[Gigahawk]

Can confirm this seems to work fine on my board

EDIT: Interestingly this seems to cause problems with my KVM:

• Switching from desktop to my (really slow) laptop usually results in USB not enumerating correctly
  • When this happens switching back doesn't fix it, stuck with the the USB failed to enumerate notification on Windows
• Switching from laptop to desktop doesn't seem to have an issue

In any case, this is a fairly niche usecase, and I suspect it has something to do with my laptop just being too slow to do some handshake or something, in general this is probably good for most users.

[andrebrait]

@Gigahawk I don't think that's such a niche scenario. I myself switch between machines sometimes, though I have a simple USB switch instead of a full KVM.

Could you maybe comment out some of the options and see if that helps?

[Gigahawk]

Looks like removing FORCE_NKRO makes the issue go away.
No idea what the problem is, I'm switching between two Windows 10 hosts, one just happens to have really underpowered hardware.

[andrebrait]

It's probably more connected to quirks of the USB controller and whatnot, I imagine.

Let's remove it then.

[andrebrait]

@Gigahawk sorry for the necro, but I found out that MOUSEKEY causes a lot of issues on this board with KVM switches.
I had to disable it in order to get my keyboard to stop failing when switching between my Mac and my Windows PC (see #15943).

It seems to cause it on many others too, see #15949.

Maybe it's worth trying to see if you can now keep NKRO enabled and also be able to use your KVM.