wifi: mac80211: skip ieee80211_verify_sta_ht_mcs_support check in non-strict mode

wifi: mac80211: skip ieee80211_verify_sta_ht_mcs_support check in non-strict mode

Some Xfinity XB8 firmware advertises >1 spatial stream MCS indexes in
their basic HT-MCS set. On cards with lower spatial streams, the check
would fail, and we'd be stuck with no HT when in fact work fine with its
own supported rate. This change makes it so the check is only performed
in strict mode.

Fixes: 574faa0e936d ("wifi: mac80211: add HT and VHT basic set verification")
Signed-off-by: Rio Liu <rio@r26.me>
Link: https://patch.msgid.link/99Mv9QEceyPrQhSP52MtAVmz0_kWJmzqotJjD9YW6LGLqk-AZloAueUyHCURilFkuqOh6Ecv8i2KKdSE1ujP3AnbU5QEouVisT1w_V3xdfc=@r26.me
Signed-off-by: Johannes Berg <johannes.berg@intel.com>