pinctrl: qcom: Add pinctrl driver for QCS404 SoC

Currently this pinctrl driver only supports BLSP UART2 specific pin
configuration.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile
index 962855e..cb8c1aa 100644
--- a/arch/arm/mach-snapdragon/Makefile
+++ b/arch/arm/mach-snapdragon/Makefile
@@ -15,4 +15,5 @@
 obj-y += pinctrl-snapdragon.o
 obj-y += pinctrl-apq8016.o
 obj-y += pinctrl-apq8096.o
+obj-y += pinctrl-qcs404.o
 obj-$(CONFIG_SDM845) += pinctrl-sdm845.o