hostapd: update hostapd to the latest version t support 160mhz VHT ACS

Username: tiagogaspar8

Origin: https://bugs.openwrt.org/index.php?do=details&task_id=2456

Supply the following if possible:

• Software versions of OpenWrt/LEDE release, packages, etc.

Latest trunk.

• Steps to reproduce

Just flash the latest image from OpenWRT and set channel bandwidth to 160 mhz and che channel number to auto, a message will pop up in syslog saying:

daemon.notice hostapd: ACS: Only VHT20/40/80 is supported now

The latest version of hostapd supports this feature already.