arm64: dts: visconti: Update the clock providers for I2C

Replace I2C clock with common clock framework.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20220510015229.139818-3-nobuhiro1.iwamatsu@toshiba.co.jp/