Fixup bootloaders. (#16256)

keyboards/matrix/m12og/rev1/rev1.c

@@ -20,6 +20,11 @@ void board_init(void) {
     writePinLow(A8);
 }
 
+void bootloader_jump(void) {
+    // This board doesn't use the standard DFU bootloader, and no information is available regarding how to enter bootloader mode. All we can do here is reset.
+    NVIC_SystemReset();
+}
+
 void keyboard_post_init_kb(void) {
     rgblight_enable_noeeprom();
     rgblight_sethsv_noeeprom(5, 255, 255);

keyboards/matrix/m12og/rev1/rules.mk

@@ -5,6 +5,9 @@ MCU_LDSCRIPT = m12og_v1
 
 BOARD = m12og_v1
 
+# Bootloader selection
+BOOTLOADER = custom
+
 # Build Options
 #   change yes to no to disable
 #