[Core] Refactor OLED to allow easy addition of other types (#13454)

* add docs

* core changes

* update keyboards to new OLED

* updated users to new OLED

* update layouts to new OLED

* fixup docs

* drashna's suggestion

* fix up docs

* new keyboards with oled

* core split changes

* remaining keyboard files

* Fix The Helix keyboards oled options

* reflect develop

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: mtei <2170248+mtei@users.noreply.github.com>

keyboards/yampad/keymaps/default/keymap.c

@@ -116,7 +116,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   return true;
 };
 
-#ifdef OLED_DRIVER_ENABLE
+#ifdef OLED_ENABLE
 
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return OLED_ROTATION_270;  // flips the display 270 degrees

keyboards/yampad/keymaps/traditional/keymap.c

@@ -19,7 +19,7 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
-*/    
+*/
 
 #include QMK_KEYBOARD_H
 
@@ -116,7 +116,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   return true;
 };
 
-#ifdef OLED_DRIVER_ENABLE
+#ifdef OLED_ENABLE
 
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return OLED_ROTATION_270;  // flips the display 270 degrees

keyboards/yampad/rules.mk

@@ -20,5 +20,6 @@ BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
-OLED_DRIVER_ENABLE = yes
+OLED_ENABLE = yes
+OLED_DRIVER = SSD1306
 DEBOUNCE_TYPE = sym_eager_pk

keyboards/yampad/yampad.c

@@ -1,4 +1,4 @@
-    
+
 /* Copyright 2019
  *
  * This program is free software: you can redistribute it and/or modify
@@ -16,13 +16,13 @@
  */
 #include "yampad.h"
 
-#if defined(OLED_DRIVER_ENABLE)
+#if defined(OLED_ENABLE)
 __attribute__((weak))
 oled_rotation_t oled_init_user(oled_rotation_t rotation) {
     return OLED_ROTATION_270;  // flips the display 270 degrees
 }
 
-__attribute__((weak)) 
+__attribute__((weak))
 void oled_task_user(void) {
   // Host Keyboard Layer Status
   oled_write_P(PSTR("Layer"), false);