Convert drivers to use pinmux devicetree node to create pinmux device
object.
On intel S1000 we add 'label' as a required property and set it to
'PINMUX' to match CONFIG_PINMUX_NAME.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This driver is setting the it8xxx2 register GCR1-15.
It's for selecting the pin function.
User would set pin at pinmux.c (under board/).
Signed-off-by: Cheryl Su <Cheryl.su@ite.com.tw>