[][MAC80211][hostapd][Fix per-user ru index in muru manual mode config commands]

[Description]
Fix the code that process the ru_idx. Originally, we will make
the input argument to do AND operation with the value one, which may
result in the ru idx always be 0 or 1. The AND operation shall be
removed.

[Release-log]
N/A

Change-Id: I5be733398ed2dd4d0f0e203389162fb9d770a0e9
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7743185
1 file changed