rename EspClass::eraseESPconfig to eraseConfig

Author: igrr

cores/esp8266/Esp.cpp

@@ -295,7 +295,7 @@ struct rst_info * EspClass::getResetInfoPtr(void) {
     return &resetInfo;
 }
 
-bool EspClass::eraseESPconfig(void) {
+bool EspClass::eraseConfig(void) {
     bool ret = true;
     size_t cfgAddr = (ESP.getFlashChipSize() - 0x4000);
     size_t cfgSize = (8*1024);

cores/esp8266/Esp.h

@@ -101,7 +101,7 @@ class EspClass {
         String getResetInfo(void);
         struct rst_info * getResetInfoPtr(void);
 
-        bool eraseESPconfig(void);
+        bool eraseConfig(void);
 
         inline uint32_t getCycleCount(void);
 };