Changes missing from msft_202503:
sonic-net/sonic-buildimage#23908
sonic-net/sonic-buildimage#23722

Was already added for Arista-7060X6-64PE-B-O128 in
#1674

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#### Why I did it

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it

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#### Which release branch to backport (provide reason below if selected)

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- [ ] 201811
- [ ] 201911
- [ ] 202006
- [ ] 202012
- [ ] 202106
- [ ] 202111
- [ ] 202205
- [ ] 202211

#### Tested branch (Please provide the tested image version)

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- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
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#### A picture of a cute animal (not mandatory but encouraged)

…tically (#25251)

#### Why I did it
src/sonic-sairedis
```
* 8c3d40d5 - (HEAD -> master, origin/master, origin/HEAD) Add PORT_PHY_ATTR flex counter support (#1674) (9 hours ago) [Dhanasekar Rathinavel]
* 5966a71b - Update SAI Header to latest (#1742) (2 days ago) [Tejaswini Chadaga]
* 2752ad6c - [multi-asic][Mellanox] add support for Mellanox multi-asic (#1683) (3 days ago) [Yakiv Huryk]
* c4e3c142 - Fix deadlock between syncd and orchagent syncd during initialization failure (#1723) (7 days ago) [DavidZagury]
* 50c5626c - Fix dash meter COUNTERS_DB keys to use VID instead of RID (#1725) (8 days ago) [Mukesh Moopath Velayudhan]
* 7632eebb - [Mellanox] Add phcsync activation for mellanox platforms. (#1734) (9 days ago) [‪Zili Bombach‬‏]
* 9eeffe38 - fix docker slave name (#1730) (10 days ago) [yijingyan2]
* 90670166 - Use matching slave container from the branch we're building against (#1743) (10 days ago) [Saikrishna Arcot]
```
#### How I did it
#### How to verify it
#### Description for the changelog