mfd: axp209: Add support for AXP209

This patch adds support for AXP209. Here is only the skeleton, no cells
are added in this patch.

Signed-off-by: Carlo Caione <carlo.caione@gmail.com>
mfd: axp209: dts: Add dtsi for axp209

This patch add a new dtsi to be included for supponting AXP209

Signed-off-by: Carlo Caione <carlo.caione@gmail.com>
ARM: cubieboard2: dts: Add entry for AXP209

This patch adds the entry for AXP209 in cubieboard 2 dts file. On
cubieboard 2 the PMIC uses I2C bus and NMI for interfacing with SoC.

Signed-off-by: Carlo Caione <carlo.caione@gmail.com>
pek

Signed-off-by: Carlo Caione <carlo.caione@gmail.com>