pinctrl: mvebu: add pinctrl driver for Armada 370

This pinctrl driver is not a full-blown pinctrl driver from scratch:
it relies on the common pinctrl-mvebu driver, which is used for all
Marvell EBU SoCs.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 31c0bba..e16b8b0 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -159,6 +159,10 @@
 	bool
 	select PINCTRL_MVEBU
 
+config PINCTRL_ARMADA_370
+	bool
+	select PINCTRL_MVEBU
+
 source "drivers/pinctrl/spear/Kconfig"
 
 endmenu