Liu Shilong

**What I did** **Why I did it** **How I verified it** **Details if related**

[ci] Add distribution parameter to make it easy to upgrade distribution

4

**What I did** Add a parameter to help upgrading distribution. **Why I did it** In future we will use bullseye distribution. Add a parameter makes it clear when upgrading distribution....

**What I did** **Why I did it** **How I verified it** **Details if related**

**What I did** **Why I did it** **How I verified it** **Details if related**

**What I did** **Why I did it** **How I verified it** **Details if related**

[build] Add retry to avoid network issues.

2

#### Why I did it Makefile needs some dependencies from the Internet. It will fail for network related issue. Retries will fix most of these issues. #### How I did...

This reverts commit f0873f29d864f8dd47b546fba85173b903353408. #### Why I did it It blocks official build for vs,broadcom image. It seems that it can't be fixed in a few days. #### How I...

[ci] Paralize azure pipeline

3

cherry-pick from master branch: https://github.com/Azure/sonic-sairedis/pull/1040