pinctrl: sprd: Add Spreadtrum pin control driver

This patch adds the pin control driver for Spreadtrum SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 6b8c6e5..4c44703 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -56,6 +56,7 @@
 obj-$(CONFIG_PINCTRL_SAMSUNG)	+= samsung/
 obj-$(CONFIG_PINCTRL_SH_PFC)	+= sh-pfc/
 obj-$(CONFIG_PINCTRL_SPEAR)	+= spear/
+obj-y				+= sprd/
 obj-$(CONFIG_PINCTRL_STM32)	+= stm32/
 obj-$(CONFIG_PINCTRL_SUNXI)	+= sunxi/
 obj-y				+= ti/