Nodes are sorted by their register start address. Move gpio_intc to the
correct position.
No functional changes intended.

Fixes: 7d32bc03 ("ARM: dts: meson8b: enable gpio interrupt controller")
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: NJerome Brunet <jbrunet@baylibre.com>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>