Fixed error when disabling net flash

fwsrc/commonservices.c

@@ -565,6 +565,7 @@ CMD_RET_TYPE cmd_WiFi(char * buffer, int retsize, char * pusrdata, char *buffend
 
 
 CMD_RET_TYPE cmd_Flash(char * buffer, int retsize, char *pusrdata, unsigned short len, char * buffend) {
+#ifndef DISABLE_NET_REFLASH 
 	uint32 chip_size_saved = flashchip->chip_size;
 	flashchip->chip_size = 0x01000000;
 	int nr = ParamCaptureAndAdvanceInt();
@@ -592,7 +593,6 @@ CMD_RET_TYPE cmd_Flash(char * buffer, int retsize, char *pusrdata, unsigned shor
 			int r = FlashRewriter( &pusrdata[2], len-2 );
 			buffprint( "!FM%d\r\n", r );
 		} break;
-
 		//Flash Write (FW#\n) <- # = byte pos.  Reads until end-of-packet.
 		case 'w': case 'W':
 		{
@@ -691,6 +691,9 @@ CMD_RET_TYPE cmd_Flash(char * buffer, int retsize, char *pusrdata, unsigned shor
 
 	flashchip->chip_size = chip_size_saved;
 	return buffend - buffer;
+#else
+	return 0;
+#endif
 } // END: cmd_Flash(...)