ARM: dts: sun8i: h3: Remove leading zeros from unit-addresses

Most of our device trees have had leading zeros for padding as part of
the nodes unit-addresses.

Remove all these useless zeros that generate warnings

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>