fixed issue of not to create temp dir for ro mode

[badri-pathak]

Pull request checklist

To handle issue readonly cache volume PVC doesn't get created

• The tempdir shouldn't be created when modes are ro cachemode

Pull request type

Please check the type of change your PR introduces: - [x] Bugfix - [ ] Feature Enhancement - [ ] Test Automation - [ ] Code Refactoring (no functional changes, no api changes) - [ ] Build related changes - [ ] Community Operator listing - [ ] Other (please describe): ## What is the current behavior?

-

What is the new behavior?

-

How risky is this change?

• [ ] Small, isolated change
• [x] Medium, requires regression testing
• [ ] Large, requires functional and regression testing

[badri-pathak]

Image: quay.io/badri_pathak/ibm-spectrum-scale-csi-driver:skipTmpDirMode_v2