Without this, max_oper_chwidth is set incorrectly,
thus ibss_mesh_select_80_160mhz fails to set the correct channel width
Signed-off-by: Richard Huynh <voxlympha@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/22644
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>