This fixes the following security problems:
* CVE-2019-9494: cache attack against SAE
* CVE-2019-9495: cache attack against EAP-pwd
* CVE-2019-9496: SAE confirm missing state validation in hostapd/AP
* CVE-2019-9497: EAP-pwd server not checking for reflection attack)
* CVE-2019-9498: EAP-pwd server missing commit validation for scalar/element
* CVE-2019-9499: EAP-pwd peer missing commit validation for scalar/element
* CVE-2019-11555: EAP-pwd message reassembly issue with unexpected fragment
Most of these problems are not relevant for normal users, SAE is only
used in ieee80211s mesh mode and EAP-pwd is normally not activated.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>