net: sched: fix misspellings using misspell-fixer tool

net: sched: fix misspellings using misspell-fixer tool

Some typos are found out by misspell-fixer tool:

$ misspell-fixer -rnv ./net/sched/
./net/sched/act_api.c:686
./net/sched/act_bpf.c:68
./net/sched/cls_rsvp.h:241
./net/sched/em_cmp.c:44
./net/sched/sch_pie.c:408

Fix typos found by misspell-fixer.

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/5fa8e9d4.1c69fb81.5d889.5c64@mx.google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>