Change the sample applications that use network socket API to
use the POSIX_API config because the NET_SOCKETS_POSIX_NAMES is
deprecated. Convert also the zsock_ API calls to plain BSD
socket API calls when applicable.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
Add simple TFTP client code using TFTP client library
Initiate connection (IPv4) with optional DNS resolution
Operate get operation then put operation in octet mode
Tested on native_posix
Issue/Discussion #60985
Signed-off-by: romain pelletant <romain.pelletant@fullfreqs.com>
