[][MAC80211][hostapd][Fix scan result updating issue]

[Description]
Fix scan result updating issue.
There are no HT capability and operation in beacon of AP operating in
NOHT.
Therefore, when updating scan results, HT capability and operation
should be assigned the default value for this kind of AP.

[Release-log]
N/A

Change-Id: I2345d593a6e3905ae78deb267b7da81badcfac8b
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7393527
1 file changed