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The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that
I2C can correctly lookup the recovery gpios.

Note that it is the gpio-davinci driver that sets the gpiochip label to
davinci_gpio.0.

Also, the I2C device uses an id of 1 on DM644x and DM355.

While at it, convert to using GPIO_TO_PIN() for referring to GPIO pin
numbers, like it is done in rest of the board support files.

Fixes: e5353765

 ("i2c/ARM: davinci: Deep refactoring of I2C recovery")
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>