wifi: rt2x00: fix repeated words in comments

Delete the redundant words 'is' and 'with'.

Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220710041442.16177-1-yuanjilin@cdjrlc.com