mac80211: handle various extensible elements correctly

mac80211: handle various extensible elements correctly

[ Upstream commit 652e8363bbc7d149fa194a5cbf30b1001c0274b0 ]

Various elements are parsed with a requirement to have an
exact size, when really we should only check that they have
the minimum size that we need. Check only that and therefore
ignore any additional data that they might carry.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.cd101f8040a4.Iadf0e9b37b100c6c6e79c7b298cc657c2be9151a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>