More 8 extruders (TMC) support

Marlin/src/module/configuration_store.cpp

  */
 
 // Change EEPROM version if the structure changes
-#define EEPROM_VERSION "V76"
+#define EEPROM_VERSION "V77"
 #define EEPROM_OFFSET 100
 
 // Check the integrity of data offsets.
 
 #pragma pack(push, 1) // No padding between variables
 
-typedef struct { uint16_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5; } tmc_stepper_current_t;
-typedef struct { uint32_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5; } tmc_hybrid_threshold_t;
-typedef struct {  int16_t X, Y, Z, X2;                                     } tmc_sgt_t;
-typedef struct {     bool X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5; } tmc_stealth_enabled_t;
+typedef struct { uint16_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5, E6, E7; } tmc_stepper_current_t;
+typedef struct { uint32_t X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5, E6, E7; } tmc_hybrid_threshold_t;
+typedef struct {  int16_t X, Y, Z, X2;                                                 } tmc_sgt_t;
+typedef struct {     bool X, Y, Z, X2, Y2, Z2, Z3, Z4, E0, E1, E2, E3, E4, E5, E6, E7; } tmc_stealth_enabled_t;
 
 // Limit an index to an array size
 #define ALIM(I,ARR) _MIN(I, COUNT(ARR) - 1)