CLI: Fix json flashing (qmk#11765)

quantum.c send char cleanups (qmk#11743)

Add a <FEATURE>_SUPPORTED flag (qmk#9058)

* Initial attempt at allowing keyboards to indicate what features they do not support

* try to use a for loop instead

* Update disable_features.mk

Co-authored-by: Drashna Jaelre <[email protected]>

* add a few more features

* remove my test fixture

* disable things that make all:all suggested"

Co-authored-by: Zach White <[email protected]>
Co-authored-by: Drashna Jaelre <[email protected]>

Add rgblight_reload_from_eeprom() (qmk#11411)

* Add rgblight_reset_from_eeprom()

* reset->reload

add get_matrix_scan_rate() to tmk_core/common/keyboard.c (qmk#11489)

Add stm32-dfu and apm32-dfu to bootloader.mk (qmk#11019)

* Add stm32-dfu and apm32-dfu to bootloader.mk

* Update flashing docs

* Update comment

* Further wordsmithing

Fix wrong key when "Music Map" is used with MAJOR_MODE. (qmk#11234)

With MAJOR_MODE (= major scale), keys in one octave is not 12 but 7.
To solve this problem, change divisor number from 12 to 7 at %(Modulo) and /(Division).

NOTE:
The last 12 represents half step keys in one octave for pitch calculation.

Fixup declaration for _kill, add other missing syscalls, populate err…

…no. (qmk#11608)

Add syscall fallbacks to ChibiOS builds (qmk#11573)

* Add fallback syscalls to ChibiOS builds that are present but able to be overridden as appropriate.

* Modified location to be ChibiOS-specific.

Add BGR byte order for WS2812 drivers (qmk#11562)

* add byte order bgr for ws2812

* update docs for driver change

* Update ws2812_driver.md

* Update docs/ws2812_driver.md

Co-authored-by: Ryan <[email protected]>

Co-authored-by: Ryan <[email protected]>