The result of the modprobe operation doesn't guarantee the driver loaded
correctly. The module may succeed and be loaded, but failures during the
probe may not propagate and result in an error of modprobe.
The valid condition is to check the existence of the interface in
/sys/class/net/wlan0.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
https://onedigi.atlassian.net/browse/DEL-8821
rename interface sta_name to be "wlan0" instead of "mlan0", so it keeps
compatibility with other platforms.
Signed-off-by: Isaac Hermida <isaac.hermida@digi.com>