Convert each file at I2C subsystem, renaming them to .rst and
adding to the driver-api book.
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: NWolfram Sang <wsa@the-dreams.de>
Acked-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>