hostapd: sync config with default configuration

hostapd: sync config with default configuration

This replaces the configuration files with the versions from the hostapd
project and the adaptions done by OpenWrt.

The resulting binaries should be the same.

Signed-off-by: Hauke Mehrtens <[email protected]>
(backported from 4b93b03577cefeed39fb6cadc7aa85706deeb074)