There's a closed pull request on the void-packages repository

 cross-arm-none-eabi*: update to 12.2.0
https://github.com/void-linux/void-packages/pull/41186

Description:
Replaces #37580.

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#### Testing the changes
- I tested the changes in this PR: **YES**

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#### Local build testing
- I built this PR locally for my native architecture, (x86_64-musl)
- I built this PR locally for these architectures (if supported. mark crossbuilds):

I tested this with my own STM32 project written in both C and C++.

---
Also:
1. clean up hostmakedepends,
2. `mudflap` was removed in GCC 4.9: https://gcc.gnu.org/wiki/Mudflap_Pointer_Debugging (commit [98906124](https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=98906124e3aa4cb17695d900fe19498e5bde63e4)),
3. `--with-host-libstdcxx` removed in commit [5dc85f7ec](https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5dc85f7ec719a79ecfbcdd8563b07e5f0f365e65).