[Keyboard] Geekboards Macropad V2 keyboard (#11045)

* Initial commit of Geekboards Macropad V2 keyboard

* Apply suggestions from code review

Co-authored-by: Joel Challis <git@zvecr.com>

* Apply suggestions from code review: delete unnecessary files

* Fixed typos

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

* Change RGB_MATRIX config syntax following recent core changes

* Apply suggestions from drashna code review

* Remove unnecessary file (it is now defined in the core)

* Remove unnecessary code, due to PR 11084 approve

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/geekboards/macropad_v2/rules.mk

@@ -0,0 +1,25 @@
+# MCU name
+MCU = STM32F072
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = WS2812
+WS2812_DRIVER = pwm
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE