Clean up RUMBA32 PlatformIO & tests (#18271)

.github/workflows/test-builds.yml

         - malyan_M300
         - mks_robin_lite
         - FLYF407ZG
-        - rumba32_f446ve
-        - rumba32_mks
+        - rumba32
         - mks_robin_pro
         - STM32F103RET6_creality
 

Marlin/src/pins/pins.h

 #elif MB(ARMED)
   #include "stm32f4/pins_ARMED.h"               // STM32F4                                env:ARMED
 #elif MB(RUMBA32_V1_0)
-  #include "stm32f4/pins_RUMBA32_AUS3D.h"       // STM32F4                                env:rumba32_f446ve
+  #include "stm32f4/pins_RUMBA32_AUS3D.h"       // STM32F4                                env:rumba32
 #elif MB(RUMBA32_V1_1)
-  #include "stm32f4/pins_RUMBA32_AUS3D.h"       // STM32F4                                env:rumba32_f446ve
+  #include "stm32f4/pins_RUMBA32_AUS3D.h"       // STM32F4                                env:rumba32
 #elif MB(RUMBA32_MKS)
-  #include "stm32f4/pins_RUMBA32_MKS.h"         // STM32F4                                env:rumba32_mks
+  #include "stm32f4/pins_RUMBA32_MKS.h"         // STM32F4                                env:rumba32
 #elif MB(BLACK_STM32F407VE)
   #include "stm32f4/pins_BLACK_STM32F407VE.h"   // STM32F4                                env:STM32F407VE_black
 #elif MB(STEVAL_3DP001V1)

buildroot/share/tests/rumba32_f446ve-tests → buildroot/share/tests/rumba32-tests

 #!/usr/bin/env bash
 #
-# Build tests for rumba32_f446ve
+# Build tests for rumba32
 #
 
 # exit on first failure
 opt_set TEMP_SENSOR_BED 1
 opt_disable THERMAL_PROTECTION_BED
 opt_set X_DRIVER_TYPE TMC2130
-exec_test $1 $2 "rumba32_f446ve V1.0 with TMC2130, PID Bed, and bed thermal protection disabled"
+exec_test $1 $2 "RUMBA32 V1.0 with TMC2130, PID Bed, and bed thermal protection disabled"
 
 # Build examples
 restore_configs
 opt_set TEMP_SENSOR_BED 1
 opt_set X_DRIVER_TYPE TMC2130
 opt_set Y_DRIVER_TYPE TMC2208
-exec_test $1 $2 "rumba32_f446ve V1.1 with TMC2130, TMC2208, PID Bed, EEPROM settings, and graphic LCD controller"
+exec_test $1 $2 "RUMBA32 V1.1 with TMC2130, TMC2208, PID Bed, EEPROM settings, and graphic LCD controller"
+
+# Build examples
+restore_configs
+opt_set MOTHERBOARD BOARD_RUMBA32_MKS
+opt_set SERIAL_PORT -1
+opt_set X_DRIVER_TYPE TMC2130
+opt_set Y_DRIVER_TYPE TMC2208
+exec_test $1 $2 "RUMBA32 MKS Default Config with Mixed TMC Drivers"
 
 # cleanup
 restore_configs

buildroot/share/tests/rumba32_mks-tests

-#!/usr/bin/env bash
-#
-# Build tests for rumba32_mks
-#
-
-# exit on first failure
-set -e
-
-# Build examples
-restore_configs
-opt_set MOTHERBOARD BOARD_RUMBA32_MKS
-opt_set SERIAL_PORT -1
-opt_set X_DRIVER_TYPE TMC2130
-opt_set Y_DRIVER_TYPE TMC2208
-exec_test $1 $2 "rumba32_mks Default Config with Mixed TMC Drivers"
-
-# cleanup
-restore_configs

platformio.ini

 #
 # HAL/STM32 Base Environment values
 #
-[base_stm32]
+[common_stm32]
 platform      = ststm32@<6.2.0
 platform_packages = framework-arduinoststm32@>=4.10700,<4.10800
 lib_deps      = ${common.lib_deps}
 build_flags   = ${common.build_flags}
   -IMarlin/src/HAL/STM32 -std=gnu++14
   -DUSBCON -DUSBD_USE_CDC
+  -DUSBD_VID=0x0483
 build_unflags = -std=gnu++11
 src_filter    = ${common.default_src_filter} +<src/HAL/STM32>
 
 #
-# HAL/STM32 Common Environment values
-#
-[common_stm32]
-platform      = ${base_stm32.platform}
-extends       = base_stm32
-build_flags   = ${base_stm32.build_flags} -DUSBD_VID=0x0483
-
-#
 # HAL/STM32F1 Common Environment values
 #
 [common_stm32f1]
 #
 # RUMBA32
 #
-
-[common_rumba32]
-platform      = ${base_stm32.platform}
-extends       = base_stm32
-build_flags   = ${base_stm32.build_flags} -Os
-  -DSTM32F4xx -DARDUINO_RUMBA32_F446VE -DARDUINO_ARCH_STM32 "-DBOARD_NAME=\"RUMBA32_F446VE\""
-  -DSTM32F446xx "-DUSB_PRODUCT=\"RUMBA32_F446VE\""
+[env:rumba32]
+platform      = ${common_stm32.platform}
+extends       = common_stm32
+build_flags   = ${common_stm32.build_flags} 
+  -Os
+  "-DUSB_PRODUCT=\"RUMBA32\""
   -DHAL_PCD_MODULE_ENABLED
   -DDISABLE_GENERIC_SERIALUSB
   -DHAL_UART_MODULE_ENABLED
 upload_protocol = dfu
 monitor_speed = 500000
 
-#
-# RUMBA32 F446VE
-#
-[env:rumba32_f446ve]
-platform      = ${common_rumba32.platform}
-extends       = common_rumba32
-build_flags   = ${common_rumba32.build_flags} -DUSBD_VID=0x0483
-
-#
-# MKS RUMBA32 (adds TMC2208/2209 UART interface and AUX-1)
-#
-[env:rumba32_mks]
-platform      = ${common_rumba32.platform}
-extends       = common_rumba32
-build_flags   = ${common_rumba32.build_flags} -DUSBD_VID=0x8000
-
 #################################
 #                               #
 #      Other Architectures      #