debug_dhcp to follow general debug

Author: bill88t

ports/raspberrypi/lwip_inc/lwipopts.h

@@ -95,7 +95,6 @@
 #define TCPIP_DEBUG                 LWIP_DBG_OFF
 #define PPP_DEBUG                   LWIP_DBG_OFF
 #define SLIP_DEBUG                  LWIP_DBG_OFF
-#define DHCP_DEBUG                  LWIP_DBG_OFF
 #define MDNS_DEBUG                  LWIP_DBG_OFF
 
 #define LWIP_TIMEVAL_PRIVATE 0

shared/netutils/dhcpserver.h

@@ -31,6 +31,10 @@
 #define DHCPS_BASE_IP (16)
 #define DHCPS_MAX_IP (8)
 
+#ifndef DHCP_DEBUG
+#define DHCP_DEBUG    LWIP_DBG_ON
+#endif
+
 typedef struct _dhcp_server_lease_t {
     uint8_t mac[6];
     uint16_t expiry;