Update wpa_supplicant/hostapd for 2017-01 vulnerability release.

Note this is a different patchset than what was applied to head and
stable/11 due to the much older version of wpa_supplicant/hostapd in
stable/10.

hostapd: Avoid key reinstallation in FT handshake
Prevent reinstallation of an already in-use group key
Extend protection of GTK/IGTK reinstallation of WNM-Sleep Mode cases
Fix TK configuration to the driver in EAPOL-Key 3/4 retry case
Prevent installation of an all-zero TK
Fix PTK rekeying to generate a new ANonce
TDLS: Reject TPK-TK reconfiguration
WNM: Ignore Key Data in WNM Sleep Mode Response frame if no PMF in use
WNM: Ignore WNM-Sleep Mode Response if WNM-Sleep Mode has not been used
WNM: Ignore WNM-Sleep Mode Response without pending request
FT: Do not allow multiple Reassociation Response frames
TDLS: Ignore incoming TDLS Setup Response retries

Submitted by: jhb
Obtained from: https://w1.fi/security/2017-01/ (against later version)
Security: FreeBSD-SA-17:07
Security: CERT VU#228519
Security: CVE-2017-13077
Security: CVE-2017-13078
Security: CVE-2017-13079
Security: CVE-2017-13080
Security: CVE-2017-13081
Security: CVE-2017-13082
Security: CVE-2017-13086
Security: CVE-2017-13087
Security: CVE-2017-13088
Differential Revision: https://reviews.freebsd.org/D12724

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Delete .gitignore files.

Restore the dbus directory that was not meant to be deleted in r252729.

Remove unused files / directories.

Merge hostapd / wpa_supplicant 2.0.

Reviewed by: adrian (driver_bsd + usr.sbin/wpa)

Remove unused files.

Merge wpa_supplicant and hostapd 0.7.3.

MFV hostapd & wpa_supplicant 0.6.10.

Add some notes and clarify a few sections:
1. Add a note to double-check the man page
2. Remove windows-specific items in the ctrl_interface section
3. Add a note that ap_scan must be set to 1 for use with wlan
4. Clarify the wording for scan_ssid related to APs that hide ssid
5. Clarify the wording for the priority option

fix portability; linux does not have sa_len/sun_len

bring in local changes for:
CONFIG_DEBUG_SYSLOG
CONFIG_TERMINATE_ONLASTIF
EAP_SERVER

connect vendor wpa area to contrib

remove unused bits

import wpa_supplicant+hostapd 0.6.8