ARM64: dts: meson-axg: correct i2c AO clock

The clock specified for the i2c AO controller is the one for the EE
domain, which is incorrect as this controller needs the clock for AO
i2c controller.

Fixes: dc6f858e ("ARM64: dts: meson-axg: add I2C DT info for Meson-AXG SoC")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>