[release-1.26] chore: update max datadisk num table

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #1829

/assign andyzhangx

none

[k8s-ci-robot]

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[k8s-ci-robot]

@k8s-infra-cherrypick-robot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-azuredisk-csi-driver-e2e-capz-windows-2019	85580bb	link	true	/test pull-azuredisk-csi-driver-e2e-capz-windows-2019

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