Centralize the list of generated files required by linuxkpi consumers,
into the common variable. This way, consumers that use the variable
are insulated from possible changes in the list.
Reviewed by: hselasky, imp
Sponsored by: Mellanox Technologies
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D24137
written by Sagi Grimberg <sagig at mellanox.com> and Max Gurtovoy
<maxg at mellanox.com>.
This code comes from https://github.com/sagigrimberg/iser-freebsd, branch
iser-rebase-11-current-r291993. It's not connected to the build just yet;
it still needs some tweaks to adapt to my changes to iSCSI infrastructure.
Big thanks to Mellanox for their support for FreeBSD!
Obtained from: Mellanox Technologies
MFC after: 1 month
Relnotes: yes
