drivers: pinctrl: Add simple pinctrl driver for Qualcomm/Atheros qca953x.

This is a simple pinctrl driver, it just support uart and spi pin-mux now.

Signed-off-by: Wills Wang <wills.wang@live.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[fixed typo in commit subject line]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 854d5a5..567b766 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -114,6 +114,15 @@
 	  both the GPIO definitions and pin control functions for each
 	  available multiplex function.
 
+config QCA953X_PINCTRL
+	bool "QCA/Athores qca953x pin control driver"
+	depends on DM && SOC_QCA953X
+	help
+	  Support pin multiplexing control on QCA/Athores qca953x SoCs.
+	  The driver is controlled by a device tree node which contains
+	  both the GPIO definitions and pin control functions for each
+	  available multiplex function.
+
 config ROCKCHIP_PINCTRL
 	bool "Rockchip pin control driver"
 	depends on DM