Add Matrix 8XV1.2 OG rev1 PCB (#11614)

* add v1 12og pcb

* update

* matrix changes for testing

* Update matrix.c

* finalized files

* rename board versions

* update readmes

* typo in readme

* fix board filenames

* Update keyboards/matrix/m12og/rev1/rev1.c

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

* change function

* update halconf and chconf

* merge master

* Update readme.md

* Update readme.md

* Update readme.md

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

keyboards/matrix/m12og/rev2/rules.mk

@@ -0,0 +1,26 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   comment out to disable the options.
+#
+BOOTMAGIC_ENABLE = full		# Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no		# Mouse keys
+EXTRAKEY_ENABLE = yes		# Audio control and System control
+CONSOLE_ENABLE = no			# Console for debug
+COMMAND_ENABLE = no			# Commands for debug and configuration
+SLEEP_LED_ENABLE = no		# Breathing sleep LED during USB suspend
+NKRO_ENABLE = yes			# USB Nkey Rollover
+BACKLIGHT_ENABLE = no		# Enable keyboard backlight functionality
+AUDIO_ENABLE = no
+RGBLIGHT_ENABLE = yes