This patch implements the set/get params interfaces for bpf_burst
scheduler.

Export bpf_sk_storage_lookup(), use it to get bpf_local_storage_data
from sk->sk_bpf_storage, then get or set its params ptr->snd_burst.

Signed-off-by: Geliang Tang <[email protected]>
Message-Id: <486891cb494ba4e9eeb02b6e220ca670dbc80866.1692788531.git.geliang.tang@suse.com>