media: i2c: imx290: Add compatible strings for IMX327 and IMX462

IMX327 is the previous generation to IMX290, and supports up to 1080p60
as 10 or 12 bit.
IMX290 adds 1080p120 in 10 bit mode.
IMX462 adds 1080p120 in both 10 and 12 bit modes.

Add compatible strings for all variants.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>