rockchip: rk322x: add pinctrl driver

Add init pinctrl driver support for:
- i2c;
- spi;
- uart;
- pwm;
- emmc/sdmmc;

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile
index a1c655d..5251771 100644
--- a/drivers/pinctrl/rockchip/Makefile
+++ b/drivers/pinctrl/rockchip/Makefile
@@ -7,6 +7,7 @@
 
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3036) += pinctrl_rk3036.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3188) += pinctrl_rk3188.o
+obj-$(CONFIG_PINCTRL_ROCKCHIP_RK322X) += pinctrl_rk322x.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3288) += pinctrl_rk3288.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3328) += pinctrl_rk3328.o
 obj-$(CONFIG_PINCTRL_ROCKCHIP_RK3368) += pinctrl_rk3368.o