config: enable set the max iova mag size to 128

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7ASVH
CVE: NA

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iova mag size will be iova_rcache size to 128, to support more
concurrency in iova allocation, and can fix the problem dixcribe
in bugzilla.
Signed-off-by: NZhang Zekun <zhangzekun11@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -5950,6 +5950,7 @@ CONFIG_ARM_SMMU_V3_PM=y
 # CONFIG_QCOM_IOMMU is not set
 # CONFIG_VIRTIO_IOMMU is not set
 CONFIG_SMMU_BYPASS_DEV=y
+CONFIG_IOVA_MAX_GLOBAL_MAGS=128
 
 #
 # Remoteproc drivers