[submodule] Update submodule sonic-linux-kernel to the latest HEAD au…

…tomatically (sonic-net#18373)

#### Why I did it
src/sonic-linux-kernel
```
* fdb3145 - (HEAD -> master, origin/master, origin/HEAD) [nvidia-bluefield] Add config inclusions for Nvidia Bluefield-3 DPU (sonic-net#380) (4 days ago) [Oleksandr Ivantsiv]
```
#### How I did it
#### How to verify it
#### Description for the changelog