Merge branch 'net-page_pool-add-netlink-based-introspection-part1'

Jakub Kicinski says:

====================
net: page_pool: plit the page_pool_params into fast and slow

Small refactoring in prep for adding more page pool params
which won't be needed on the fast path.

v1:  https://lore.kernel.org/all/20231024160220.3973311-1-kuba@kernel.org/
RFC: https://lore.kernel.org/all/20230816234303.3786178-1-kuba@kernel.org/
====================

Link: https://lore.kernel.org/r/20231121000048.789613-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>