net: mqtt_sn: Use zsock_inet_ntop instead of inet_ntop

Use zsock_inet_ntop() instead of inet_ntop() to avoid dependency to the
POSIX subsystem in the library.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>

Author: rlubos

subsys/net/lib/mqtt_sn/mqtt_sn_transport_udp.c

@@ -16,20 +16,20 @@
 #include <zephyr/net/socket.h>
 #include <zephyr/net/igmp.h>
 
-#include <zephyr/posix/fcntl.h>
-
 #include <zephyr/logging/log.h>
 LOG_MODULE_DECLARE(net_mqtt_sn, CONFIG_MQTT_SN_LOG_LEVEL);
 
 static char *get_ip_str(const struct sockaddr *sa, char *s, size_t maxlen)
 {
 	switch (sa->sa_family) {
 	case AF_INET:
-		inet_ntop(AF_INET, &(((struct sockaddr_in *)sa)->sin_addr), s, maxlen);
+		zsock_inet_ntop(AF_INET, &(((struct sockaddr_in *)sa)->sin_addr),
+				s, maxlen);
 		break;
 
 	case AF_INET6:
-		inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)sa)->sin6_addr), s, maxlen);
+		zsock_inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)sa)->sin6_addr),
+				s, maxlen);
 		break;
 
 	default: