arm64: tx1_config: Enable SMMU bypass

That's not the proper way to fix the problem but it lets me boot at
least.

See commit

  954a03be

 ("iommu/arm-smmu: Break insecure users by disabling bypass by default")
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>

arch/arm64/configs/tx1_config

@@ -4474,7 +4474,7 @@ CONFIG_OF_IOMMU=y
 CONFIG_IOMMU_DMA=y
 # CONFIG_IPMMU_VMSA is not set
 CONFIG_ARM_SMMU=y
-CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT=y
+CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT=n
 CONFIG_ARM_SMMU_V3=y
 # CONFIG_MTK_IOMMU is not set
 CONFIG_QCOM_IOMMU=y