arm64: dts: allwinner: a64: pinebook: enable power supplies

Pinebook has ACIN connector and 10000 mAh battery.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Oskari Lemmela <oskari@lemmela.net>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>