ARM: sun5i: dt: Use the A10s gates in the DTSI

The A10s has only a subset of the A10 gates. Now that the clock driver
has support for this gates set, switch to it in the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Emilio López <emilio@elopez.com.ar>