sunxi: Sort dts Makefile entries for H3

The dts Makefile entries for the H3 are not ordered correctly.
Move the Nano Pi entries before the Orange Pi so they are.

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