The AXP209 PMIC is used with some Allwinner SoCs. This patch adds
a dtsi file listing all the regulator nodes. The regulators are
initialized based on their device node names.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>