🐛 Fix FYSETC Cheetah 2.0 pins for production (#23104)

Marlin/src/pins/stm32f4/pins_FYSETC_CHEETAH_V20.h

   #define FLASH_EEPROM_EMULATION
   #define FLASH_EEPROM_LEVELING
 
-  #define FLASH_SECTOR          2
+  #define FLASH_SECTOR          1
   #define FLASH_UNIT_SIZE       0x4000      // 16k
-  #define FLASH_ADDRESS_START   0x8008000
+  #define FLASH_ADDRESS_START   0x8004000
 #endif
 
 //
 // Limit Switches
 //
 #define X_STOP_PIN                          PB4
-#define Y_STOP_PIN                          PB3
+#define Y_STOP_PIN                          PC8
 #define Z_STOP_PIN                          PB1
 
 //
 #define HEATER_0_PIN                        PC6
 #define HEATER_BED_PIN                      PC7
 #ifndef FAN_PIN
-  #define FAN_PIN                           PA1
+  #define FAN_PIN                           PA14
 #endif
-#define FAN1_PIN                            PC8
+#define FAN1_PIN                            PA13
+#define FAN2_PIN                            PA1
 
 //
 // Temperature Sensors