arm64: defconfig: Enable Qualcomm SM8250 pinctrl driver

The SM8250 pinctrl driver provides pin configuration, pin muxing and
GPIO pin control for many pins on the SM8250 SoC.
Reviewed-by: NJeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200622220048.717073-1-bjorn.andersson@linaro.orgSigned-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/configs/defconfig

@@ -469,6 +469,7 @@ CONFIG_PINCTRL_QCOM_SPMI_PMIC=y
 CONFIG_PINCTRL_SC7180=y
 CONFIG_PINCTRL_SDM845=y
 CONFIG_PINCTRL_SM8150=y
+CONFIG_PINCTRL_SM8250=y
 CONFIG_GPIO_ALTERA=m
 CONFIG_GPIO_DWAPB=y
 CONFIG_GPIO_MB86S7X=y