mountoptions support for local storage

[lichuqiang]

What this PR does / why we need it:
partially address #68317.

As we've already distinguished volume source type, and tried to fetch mountOptions for that of block here in local plugin, we don't need extra in-tree change but just enable SupportsMountOption().

Will post a follw-up PR in the external plugin to pass mount options into pv spec.

Release note:

NONE

/sig storage
/kind feature
/assign @msau42
/cc @wenlxie

[k8s-ci-robot]

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In response to this:

What this PR does / why we need it:
partially address #68317.

As we've already distinguished volume source type, and tried to fetch mountOptions for that of block here in local plugin, we don't need extra in-tree change but just enable SupportsMountOption().

Will post a follw-up PR in the external plugin to pass mount options into pv spec.

Release note:

NONE

/sig storage
/kind feature
/assign @msau42
/cc @wenlxie

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[msau42]

I think in SetUp we also need to process the mount options

[lichuqiang]

add commit to process the mount options in SetUp

[msau42]

/lgtm

[k8s-ci-robot]

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