ARM: dts: sunxi: h3/h5: Fix i2c2 register address

The unit address and register address does not match.
This patch fix the register address with the good one.

Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>