Move WiFi debug messages to PMEM (#5388)

Save ~1200 bytes in debug mode by making debug strings into PSTRs().

Author: earlephilhower

Diff for: libraries/ESP8266WiFi/src/ESP8266WiFi.h

@@ -45,7 +45,7 @@ extern "C" {
 
 #ifdef DEBUG_ESP_WIFI
 #ifdef DEBUG_ESP_PORT
-#define DEBUG_WIFI(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
+#define DEBUG_WIFI(fmt, ...) DEBUG_ESP_PORT.printf_P( (PGM_P)PSTR(fmt), ##__VA_ARGS__ )
 #endif
 #endif
 

Diff for: libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.h

@@ -29,7 +29,7 @@
 
 #ifdef DEBUG_ESP_WIFI
 #ifdef DEBUG_ESP_PORT
-#define DEBUG_WIFI_GENERIC(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
+#define DEBUG_WIFI_GENERIC(fmt, ...) DEBUG_ESP_PORT.printf( (PGM_P)PSTR(fmt), ##__VA_ARGS__ )
 #endif
 #endif
 

Diff for: libraries/ESP8266WiFi/src/ESP8266WiFiMulti.h

@@ -32,7 +32,7 @@
 
 #ifdef DEBUG_ESP_WIFI
 #ifdef DEBUG_ESP_PORT
-#define DEBUG_WIFI_MULTI(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
+#define DEBUG_WIFI_MULTI(fmt, ...) DEBUG_ESP_PORT.printf( (PGM_P)PSTR(fmt), ##__VA_ARGS__ )
 #endif
 #endif