Fix EEPROM_Sheets_base overlay of EEPROM_NOZZLE_DIAMETER_uM.

Firmware/eeprom.h

@@ -196,7 +196,7 @@ static_assert(sizeof(Sheets) == EEPROM_SHEETS_SIZEOF, "Sizeof(Sheets) is not EEP
 #define EEPROM_NOZZLE_DIAMETER (EEPROM_CHECK_MODE-1) // uint8
 #define EEPROM_NOZZLE_DIAMETER_uM (EEPROM_NOZZLE_DIAMETER-2) // uint16
 
-static Sheets * const EEPROM_Sheets_base = (Sheets*)(EEPROM_NOZZLE_DIAMETER - EEPROM_SHEETS_SIZEOF);
+static Sheets * const EEPROM_Sheets_base = (Sheets*)(EEPROM_NOZZLE_DIAMETER_uM - EEPROM_SHEETS_SIZEOF);
 
 //This is supposed to point to last item to allow EEPROM overrun check. Please update when adding new items.
 #define EEPROM_LAST_ITEM ((uint16_t)EEPROM_Sheets_base)