- Add Test Case #11: Local-Preference with Multiple Paths
- Add Test Case #12: Local-Preference with Equal Values (Tie-Breaking)
- Add Test Case #13: Local-Preference Interaction with AS-Path
- Add Test Case #14: Local-Preference Interaction with MED
- Add Test Case #15: Local-Preference Interaction with Weight
- Add Test Case sonic-net#16: Local-Preference with Route Flapping
- Extend topology support to include t0 and t0-multi-asic
- Update scope section to reflect new test coverage

Co-Authored-By: bhavani@cisco.com <bhavani@cisco.com>

- Add test_local_preference_multiple_paths (Test Case #11)
- Add test_local_preference_equal_values_tiebreaker (Test Case #12)
- Add test_local_preference_vs_aspath (Test Case #13)
- Add test_local_preference_vs_med (Test Case #14)
- Add test_local_preference_vs_weight (Test Case #15)
- Add test_local_preference_route_flapping (Test Case sonic-net#16)
- Add helper functions for multi-path testing
- Update pytestmark to support t0 and t0-multi-asic topologies

Co-Authored-By: bhavani@cisco.com <bhavani@cisco.com>

[sonic-linkmgrd][master] submodule update

Commits added:
0c23756 Jing Zhang      2022-01-19      Linkmgrd subscribing State DB route event  (sonic-net#13)
12b9951 Longxiang Lyu   2021-12-13      Add TLV support to ICMP payload (sonic-net#11)
3eedda3 Longxiang Lyu   2022-01-06      Add missing intermediate states (sonic-net#16)
8da4982 Ying Xie        2022-01-04      [linkmgrd] update README, set coding style guidance (sonic-net#15)
a897cf8 Longxiang Lyu   2021-12-13      Improve PR template (sonic-net#16)
6fec701 Jing Zhang      2021-12-06      Add pull request template for linkmgrd repo (sonic-net#9)


signed-off-by: Jing Zhang zhangjing@microsoft.com

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

[Nvidia] Enable iproute2 & fix mft build (sonic-net#16)

* Enable iproute2 as the SDK is also built

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

* [Nvidia] Dont use mkbmdeb method of dkms to build the package

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

* Added linux image to the Depends section of mft

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

[Nvidia] [Bookworm] Separate KERNEL_MFT into a new target (sonic-net#16782)

* [Nvidia] Seperate KERNEL_MFT into a new target because of kernel header dependency

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

* Update linux-kernel submodule

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

* Fix paralell build problem

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

---------

Signed-off-by: Vivek Reddy <vkarri@nvidia.com>

… sensor errors (#25276)

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#### Why I did it
Fix transient errors during bfb install on smartswitch platform.

```
ERR pmon#sensord: Error getting sensor data: mp2975/sonic-net#16: Kernel interface error
```
##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
Use pre-shutdown procedures before doing a reboot

#### How to verify it
Installation of bfb image on dpu from switch shouldn't cause errors
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- [ ] 202305
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- [ ] 202505

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