Defined in 4 files as a config:
- Kconfig.zephyr, line 306 (as a config)
- boards/x86/galileo/Kconfig.defconfig, line 4 (as a config)
- boards/x86/minnowboard/Kconfig.defconfig, line 7 (as a config)
- boards/x86/up_squared/Kconfig.defconfig, line 7 (as a config)