PMIC often require the I2C bus, and the PMIC regulators might be
necessary to power on eMMC/SD-card or other supplies required
for successful boot. Make sure I2C driver for i.MX devices is
built-in.
Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de>