media: i2c: max9286: [Workaround] 'device is bound'

This introduces a local workaround to support multiple MAX9286 devices
on the same I2C bus.

Not for upstream consumption due to device_is_bound being an in kernel
symbol, and requires the module to be a built-in only.

Not-signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>