Defined in 4 files as a config:
- arch/x86/soc/intel_quark/quark_x1000/Kconfig.defconfig.series, line 152 (as a config)
- boards/arc/arduino_101_sss/Kconfig.defconfig, line 22 (as a config)
- boards/x86/arduino_101/Kconfig.defconfig, line 24 (as a config)
- drivers/spi/Kconfig, line 93 (as a config)