ChibiOS 21.11.1 update. (#16251)

* ChibiOS 21.11.1 update.

* `uf2-tinyuf2` => `tinyuf2`

* Updated chibios-contrib, fixup preprocessor for tinyuf2 bootloader.

* Fixup keychron L433 boards.

* Makefile cleanup.

* RISC-V build fixes.

* Fixup RISC-V build.

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

[Keymap] Add encoder showcase keymap (#16544)

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

[Keyboard] Update DogTag Macro Pad (#16446)

Co-authored-by: Drashna Jaelre <drashna@live.com>

[Keyboard] BM68HSRGB/rev2 (#16454)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

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

[Keyboard] Update Jels88 (#16486)

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

[Keyboard] Delete duplicate pandora directory (#16496)

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

[Keyboard] Tidy Up pearlboards (#16497)

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

[Keyboard] Atlantis ak81_ve encoder behaviour enhancement & fixes (#16503)

[Keyboard] Update Wakizashi 40 config and readme (#16505)

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

[Keyboard] Sick68 VIA keymap (#16508)

Co-authored-by: xia0 <xiao@morgan.net.au>

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

[Keyboard] add qk65 files by qwertykeys studio (#16491)

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