Merge branch 'selftests-net-exercise-page-pool-reporting-via-netlink'

Jakub Kicinski says:

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selftests: net: exercise page pool reporting via netlink

Add a basic test for page pool netlink reporting.

v1: https://lore.kernel.org/all/20240411012815.174400-1-kuba@kernel.org/
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Link: https://lore.kernel.org/r/20240412141436.828666-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>