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

…tomatically (#16391)

#### Why I did it
src/sonic-linux-kernel
```
* 7ee50c9 - (HEAD -> master, origin/master, origin/HEAD) [Mellanox] Upstream kernel patches with HW-MGMT 7.0030.1011 (#327) (29 hours ago) [Kebo Liu]
```
#### How I did it
#### How to verify it
#### Description for the changelog