pinctrl: single: Use generic pinctrl helpers for managing groups

We can now drop the driver specific code for managing groups.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 7e96428..d2fbcea 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -166,8 +166,8 @@
 config PINCTRL_SINGLE
 	tristate "One-register-per-pin type device tree based pinctrl driver"
 	depends on OF
+	select GENERIC_PINCTRL_GROUPS
 	select PINMUX
-	select PINCONF
 	select GENERIC_PINCONF
 	help
 	  This selects the device tree based generic pinctrl driver.