test: Use built-in hton to avoid macro conflict on mac OS

Author: AndreasAakesson

test/net/unit/dhcp_message_test.cpp

@@ -32,16 +32,17 @@ struct test_opt
 // Creates a DHCP DISCOVERY message on the buffer
 net::dhcp::Message* create_discovery_msg(uint8_t* buffer)
 {
+  using namespace net;
   using namespace net::dhcp;
   auto* msg = reinterpret_cast<Message*>(buffer);
 
   msg->op     = static_cast<uint8_t>(op_code::BOOTREQUEST);
   msg->htype  = static_cast<uint8_t>(htype::ETHER);
   msg->hlen   = ETH_ALEN;
   msg->hops   = 0;
-  msg->xid    = net::htonl(322420);
+  msg->xid    = htonl(322420);
   msg->secs   = 0;
-  msg->flags  = net::htons(static_cast<uint16_t>(flag::BOOTP_BROADCAST));
+  msg->flags  = htons(static_cast<uint16_t>(flag::BOOTP_BROADCAST));
   msg->ciaddr = 0;
   msg->yiaddr = 0;
   msg->siaddr = 0;