net: websocket: fix undefined reference

Fix undefined reference to MSG_DONTWAIT while building websocket client.

Signed-off-by: Joel Guittet <[email protected]>
(cherry picked from commit 4c16ec1)

Author: joelguittet

subsys/net/lib/websocket/websocket.c

@@ -645,7 +645,8 @@ static int websocket_prepare_and_send(struct websocket_context *ctx,
 	k_timepoint_t req_end_timepoint = sys_timepoint_calc(req_timeout);
 
 	return sendmsg_all(ctx->real_sock, &msg,
-			   K_TIMEOUT_EQ(tout, K_NO_WAIT) ? MSG_DONTWAIT : 0, req_end_timepoint);
+			   K_TIMEOUT_EQ(tout, K_NO_WAIT) ? ZSOCK_MSG_DONTWAIT : 0,
+			   req_end_timepoint);
 #endif /* CONFIG_NET_TEST */
 }
 
@@ -995,7 +996,7 @@ int websocket_recv_msg(int ws_sock, uint8_t *buf, size_t buf_len,
 			ret = wait_rx(ctx->real_sock, timeout_to_ms(&tout));
 			if (ret == 0) {
 				ret = zsock_recv(ctx->real_sock, ctx->recv_buf.buf,
-						 ctx->recv_buf.size, MSG_DONTWAIT);
+						 ctx->recv_buf.size, ZSOCK_MSG_DONTWAIT);
 				if (ret < 0) {
 					ret = -errno;
 				}