"linux" apport package hook

[Brian Murray]

I'm working on fixing LP: #1861446 where the apport package hooks
(shipped via apport) are not run for some linux packages. I've currently
added in symlinks for linux-signed-5.4, linux-signed-oem-5.4, linux-5.4,
and linux-oem-5.4[1]. Am I missing anything else?

[1]
https://bazaar.launchpad.net/~ubuntu-core-dev/ubuntu/focal/apport/ubuntu/view/head:/debian/apport.links

Thanks,
--
Brian Murray