rates_996 is mistakenly written as rates_969, fix it.

Fixes: c4cbaf79 ("cfg80211: Add support for HE")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Link: https://msgid.link/20240606020653.33205-2-quic_bqiang@quicinc.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>