Consolidate modelm v2 (#14996)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/ibm/model_m_122/m122_3270/blackpill/info.json

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+{
+    "usb": {
+        "device_version": "0.0.2"
+    },
+    "matrix_pins": {
+        "cols": ["B0", "B1", "B10", "B12", "B13", "B14", "B15", "A8", "A7", "A10", "A6", "A5", "A15", "B3", "B4", "B5", "B6", "B7", "B8", "B9"],
+        "rows": ["C13", "C14", "C15", "A0", "A1", "A2", "A3", "A4"]
+    },
+    "diode_direction": "ROW2COL",
+    "processor": "STM32F411",
+    "bootloader": "stm32-dfu",
+    "board": "BLACKPILL_STM32_F411"
+}

keyboards/ibm/model_m_122/m122_3270/blackpill/readme.md

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+# BlackPill controller for m122-3270
+
+This directory contains the BlackPill-specific definitions for the M122-3270 keyboard.

keyboards/ibm/model_m_122/m122_3270/blackpill/rules.mk

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+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output