Normalize HAL/STM32 targets (#17904)

.github/workflows/test-builds.yml

buildroot/share/PlatformIO/boards/BigTree_Btt002.json

buildroot/share/PlatformIO/boards/BigTree_SKR_Pro.json

buildroot/share/PlatformIO/boards/FLYF407ZG.json

buildroot/share/PlatformIO/boards/blackSTM32F407VET6.json

buildroot/share/tests/ARMED-tests

buildroot/share/tests/BIGTREE_GTR_V1_0-tests

buildroot/share/tests/BIGTREE_SKR_PRO-tests

buildroot/share/tests/FLYF407ZG-tests

buildroot/share/tests/FYSETC_S6-tests

buildroot/share/tests/STM32F070RB_malyan-tests

buildroot/share/tests/STM32F401VE_STEVAL-tests

buildroot/share/tests/STM32F407VE_black-tests

buildroot/share/tests/malyan_M300-tests

buildroot/share/tests/rumba32_f446ve-tests

buildroot/share/tests/rumba32_mks-tests

platformio.ini