As part of WEXT replacement, replace range_ext with a sysfs file.
This feature can be controlled using configuration flag
CONFIG_WLAN_SET_RANGE_EXT
file path: /sys/class/net/wlanxx/range_ext
where wlanxx is adapter name
example command: echo 1 > /sys/class/net/wlan1/range_ext
Change-Id: I389da429e1a0cd3a2ed1efede6cb958628eb7e6e
CRs-Fixed: 2689879