/arm/stm32/stm32f4discovery,CONFIG_ARM_TOOLCHAIN_GNU_EABI
-stm32f4discovery:winbuild

/arm/stm32/stm32ldiscovery,CONFIG_ARM_TOOLCHAIN_CLANG

/arm/stm32/stm32vldiscovery,CONFIG_ARM_TOOLCHAIN_CLANG

/arm/stm32/viewtool-stm32f107,CONFIG_ARM_TOOLCHAIN_CLANG