ARM: qcom_defconfig: Enable ARM SMMU

Enable ARM SMMU driver for using with platforms like SDX55.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210118053853.56224-9-manivannan.sadhasivam@linaro.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm/configs/qcom_defconfig

@@ -228,6 +228,7 @@ CONFIG_MSM_MMCC_8960=y
 CONFIG_MSM_MMCC_8974=y
 CONFIG_SDX_GCC_55=y
 CONFIG_MSM_IOMMU=y
+CONFIG_ARM_SMMU=y
 CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y
 CONFIG_MAILBOX=y