docs/accel: correct links to mailing list archives

Since the mailing archive list lkml.org is obsolete, change the links into
lore.kernel.org's ones.

Signed-off-by: Hu Haowen <2023002089@link.tyut.edu.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240118090140.4868-1-2023002089@link.tyut.edu.cn