LinuxKPI: add further dummy header files
Wireless drivers try to include these files. Add them empty for no
better reason yet.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit b7afaf8a411a0536691feabb024ffd5afb579eb5)
(cherry picked from commit 6a1c5037363aebd14333bb759237d2b19a1608d8)
(cherry picked from commit ab55b58b5c515148e6ef65422c9fda17085f07cd)