Add missing tca6416 i2c gpio controller to SC dts file.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/a19c191d0dffb213d9dc8809d22728d79cf73a22.1661259623.git.michal.simek@amd.com