xsk: convert xdp_copy_frags_from_zc() to use page_pool_dev_alloc()

This commit makes xdp_copy_frags_from_zc() use page allocation API
page_pool_dev_alloc() instead of page_pool_dev_alloc_netmem() to avoid
possible confusion of the returned value.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Link: https://patch.msgid.link/20250426081220.40689-3-minhquangbui99@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>