Initiate a SimpleLink WiFi Driver, implemented to the WiFi management
offload APIs for scan, connect, disconnect.
Also registers the DHCP-obtained IPv4 address upon connect.
This was validated on a cc3220sf_launchxl using the wifi
shell module from the Zephyr shell_module sample.
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
Gil Pitney