dtoverlays: Add overlays for Sony IMX327 and IMX462 image sensors

commit  84fe8b2c17eba8cc2163448ea169d3008b8576d8 from
https://github.com/raspberrypi/linux.git rpi-5.15.y

These are currently identical to IMX290, but have slightly
different maximum frame rate capabilities.

Add overlays for the different compatible strings.

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