ARM: dts: sunxi: Fix GPIO LED node names

These board devicetrees fail to validate because the gpio-leds schema
requires its child nodes to have "led" in the node name.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20221231225854.16320-1-samuel@sholland.org


Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>