[quant][graph] Update dynamic quant tests to use new qconfig

[supriyar]

Stack from ghstack:

• [quant][graph] Update dynamic quant tests to use new qconfig #35451 [quant][graph] Update dynamic quant tests to use new qconfig
• [quant][graph] Add a new observer type for dynamic quantization #35455 [quant][graph] Add a new observer type for dynamic quantization

Summary:
default_dynamic_qconfig now holds activation observer

Test Plan:
python test/test_quantize_script.py

Reviewers:

Subscribers:

Tasks:

Tags:

Differential Revision: D20664585

[dr-ci]

💊 CircleCI build failures summary and remediations

As of commit a8f88e7 (more details on the Dr. CI page):

---

✅ None of the build failures appear to be your fault 💚

---

• 1/1 broken upstream at merge base 2dd867f from Mar 25 until Mar 26 (13 commits; 7580470 - aa01a95)

  Please rebase on the viable/strict branch (expand for instructions)

  Since your merge base is older than viable/strict, run these commands:

  git fetch https://github.com/pytorch/pytorch viable/strict
  git rebase FETCH_HEAD
  

  Check out the recency history of this "viable master" tracking branch.

---

🚧 1 upstream failure:

These were probably caused by upstream breakages:

• pytorch_linux_xenial_py3_clang5_asan_test from Mar 25 until Mar 26 (13 commits; 7580470 - aa01a95)

---

This comment was automatically generated by Dr. CI (expand for details).

Follow this link to opt-out of these comments for your Pull Requests.

Please report bugs/suggestions on the GitHub issue tracker.

See how this bot performed.

This comment has been revised 11 times.

[facebook-github-bot]

This pull request has been merged in 8074779.