Stabilize Half-duplex PIO split comms take 2 (#18421)

...by moving the actually timing critical `enter_rx_state()` and
`leave_rx_state()` functions to RAM in order to not be affected by XIP
cache spikes. This commit also reverts the hacky USB interrupt disabling
that was done in 293c53d774

Merge remote-tracking branch 'origin/master' into develop

Remove legacy keycodes from unit tests (#18430)

Merge remote-tracking branch 'origin/master' into develop

[Keymap] Added Kyria keyboard to jimmysjolund (#18335)

Update ChibiOS to latest 21.11.2 (#18428)

This includes a hotfix for RP2040 deadlocks due to XIP cache misses in
the ChibiOS virtual timer implementation.

Merge remote-tracking branch 'origin/master' into develop

Add encoder map to Quefrency VIA keymap (#18380)

* Add encoder map to Quefrency VIA keymap

* Explicitly define which RGB animations are enabled

* Set different PID to prep for different VIA .json usage

* Add ifdefs to handle if ENCODER_ENABLE is set to NO

Merge remote-tracking branch 'origin/master' into develop

Fix boardsource/lulu RGB matrix (#18407)

* Fix ordering of entries for RGB matrix.

* Fix typos in RGB matrix definition.

These matrix indices overlapped.

* Improve positions in RGB matrix.

The rotary encoder and the key below that are in a new column.
The rotary encoder's height is inbetween rows.
The key below is kind of off-axis and thus hard to pin down to a
specific location.

The modifer keys in the bottom row are staggered compared to the other
columns.

Add DD mapping for LED/RGB Matrix HSVS steps (#18414)

Merge remote-tracking branch 'origin/master' into develop

Fix int8_t overflow in RGB heatmap effect (#18410)

Update pico-sdk to version 1.4.0 (#18423)

...which contains fixes for GCC warnings.

Merge remote-tracking branch 'origin/master' into develop

Enable more BDN9 RGB effects (#18420)

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Sodium50 - Fix configuration (#18422)

[Core] remove busy waiting from rgblight functions (#18418)

Merge remote-tracking branch 'origin/master' into develop