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

…tomatically (#637)

#### Why I did it
src/sonic-linux-kernel
```
* 8c0b9cf - (HEAD -> 202412, origin/HEAD, origin/202412) [optoe] Reset page select byte to 0 before upper memory access on page 0h (#464) (#11) (7 hours ago) [mssonicbld]
* a68d9f2 - [optoe] Reset page select byte to 0 before upper memory access on page 0h (#464) (#10) (31 hours ago) [mssonicbld]
* f18e59c - [optoe] Reset page select byte to 0 before upper memory access on page 0h (#464) (#9) (2 days ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog