[DO NOT MERGE] Bump up the cuDNN version

[stu1130]

Description

testing via CI

Checklist

Essentials

Please feel free to remove inapplicable items for your PR.

• The PR title starts with [MXNET-$JIRA_ID], where $JIRA_ID refers to the relevant JIRA issue created (except PRs with tiny changes)
• Changes are complete (i.e. I finished coding on this PR)
• All changes have test coverage:
• Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
• Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
• Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
• Code is well-documented:
• For user-facing API changes, API doc string has been updated.
• For new C++ functions in header files, their functionalities and arguments are documented.
• For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
• Check the API doc at http://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$PR_ID/$BUILD_ID/index.html
• To the my best knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change

Changes

• Feature1, tests, (and when applicable, API doc)
• Feature2, tests, (and when applicable, API doc)

Comments

• If this change is a backward incompatible change, why must this change be made.
• Interesting edge cases to note here

[vandanavk]

@mxnet-label-bot add [pr-work-in-progress, CI]

[perdasilva]

@stu1130 the cudnn install script for centos7 isn't general. I've just submitted a PR to fix this: #14923 - I hope it helps you =)

P.S. if it's better/faster for you, feel free to just take the changeset from the PR and applying it here - then I can close my PR...

[stu1130]

@perdasilva thanks a lot! I am still debugging CUDNN_STATUS_ARCH_MISMATCH we can merge your #14923 first 👍