mfd: simple-mfd-i2c: Add a Kconfig name
Add a Kconfig name to the "Simple Multi-Functional Device support (I2C)"
device so that it can be enabled via menuconfig.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
authored by