pinctrl: mvebu: kirkwood pinctrl driver

This patch adds a SoC specific pinctrl driver for Marvell Kirkwood SoCs
plus DT binding documentation. This driver will use the mvebu pinctrl
driver core.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index d1327df..3006294 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -31,5 +31,6 @@
 obj-$(CONFIG_PINCTRL_COH901)	+= pinctrl-coh901.o
 obj-$(CONFIG_PINCTRL_MVEBU)	+= pinctrl-mvebu.o
 obj-$(CONFIG_PINCTRL_DOVE)	+= pinctrl-dove.o
+obj-$(CONFIG_PINCTRL_KIRKWOOD)	+= pinctrl-kirkwood.o
 
 obj-$(CONFIG_PLAT_SPEAR)	+= spear/