pinctrl: qcom: move ipq4019 driver from mach-ipq40xx

Drop the duplicated pinctrl-snapdragon driver from mach-ipq40xx and add
it to drivers/pinctrl/qcom.

Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2eef266..9e73b69 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -777,6 +777,7 @@
 	select SMEM
 	select OF_CONTROL
 	select CLK_QCOM_IPQ4019
+	select PINCTRL_QCOM_IPQ4019
 	imply CMD_DM
 
 config ARCH_KEYSTONE