[v1.7] Pin XLA CI to use r1.7 release branch.

[gchanan]

No description provided.

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit d238bdd (more details on the Dr. CI page):

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• 1/1 failures introduced in this PR---

1 failure not recognized by patterns:

Job	Step	Action
docker-pytorch-linux-bionic-rocm3.5.1-py3.6	Unknown	🔁 rerun

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[ailzhang]

Thanks!

[dr-ci]

💊 CI failures summary and remediations

As of commit d238bdd (more details on the Dr. CI page):

---

• 1/1 failures introduced in this PR

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XLA failure

Job pytorch_xla_linux_bionic_py3_6_clang9_test is failing. Please create an issue with title prefixed by [PT_BREAK] in pytorch/xla and link to to this PR. If you have questions, please reach out to @ailzhang / @dlibenzi / @JackCaoG.

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This comment has been revised 1 time.