[Keymap] Drashna updates for 0.19 (#19175)

* Fix up bastardkb boards since blackpill support is officially added.
  * Check for blackpill version, not elite c.
  * Add checks in chibiOS config since multiple ARM controllers supported.
  * Rework rules.mk for keymaps to better handle arm vs avr support
* Start moving away from `matrix_*_*` functions.
  * `housekeeping_task_*` instead of `matrix_scan_*`
  * `keyboard_(pre|post)_init_*` instead of `matrix_init_*` 
* Add ℂℴmⅈℂ unicode input method.
* Clean up unicode code to be more compact and flexible.
* Remove/move Pro Micro LED commands to userspace and better filter them
* Fixup OLED code
  * Use newer quantum keycode functions/preprocessors rather than manual bit manipulation
  * Make unicode mode render much more compact/simple.
* Make qmk secrets more self contained
* Remove custom implementation of split watchdog

1 files changed, 1 insertions, 1 deletions

diff --git a/layouts/community/ergodox/drashna/keymap.c b/layouts/community/ergodox/drashna/keymap.c
index 64ef098280..e5675854e1 100644
--- a/layouts/community/ergodox/drashna/keymap.c
+++ b/layouts/community/ergodox/drashna/keymap.c
@@ -268,7 +268,7 @@ bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
     return true;
 }
 
-void matrix_scan_keymap(void) {  // runs frequently to update info
+void housekeeping_task_keymap(void) {  // runs frequently to update info
     uint8_t modifiers     = get_mods();
     uint8_t led_usb_state = host_keyboard_leds();
     uint8_t one_shot      = get_oneshot_mods();