ARM: at91/dt: kizbox: set read/write boot argument

To mount root-fs with write permissions.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
ARM: at91/dt: kizbox: set console boot argument

The DBUG UART is used to print kernel traces.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
ARM: at91/dt: kizbox: fix gpios active level

The gpio buttons are active high.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
ARM: at91/dt: kizbox: set pwm-leds driver

Leds are PWM-driven.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
ARM: at91/dt: kizbox: rename leds using their function

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>
ARM: at91/dt: kizbox: rename front button to user

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>