MFV r336495:
Another props change. The real work was done by r324696. We're simply
syncing up with the vendor branch again.
mport upline security patch: WNM: Ignore WNM-Sleep Mode Request in
wnm_sleep_mode=0 case. This is also upline git commit
114f2830d2c2aee6db23d48240e93415a256a37c.
Obtained from: https://w1.fi/security/2017-1/\
rebased-v2.6-0007-WNM-Ignore-WNM-Sleep-Mode-\ Response-without-pending-r.patch