linearity correction define added (menu readded)

.gitignore

@@ -12,3 +12,4 @@ Firmware/Doc
 /Firmware/Firmware - Shortcut.lnk
 /Firmware/variants/1_75mm_MK3-MMU-EINSy10a-E3Dv6full.h.bak
 /Firmware/Marlin_main.cpp~RF12cfae7.TMP
+/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h.bak

Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h

@@ -183,6 +183,7 @@
 #define CMD_DIAGNOSTICS //Show cmd queue length on printer display
 #endif /* DEBUG_BUILD */
 
+#define LINEARITY_CORRECTION
 #define TMC2130_LINEARITY_CORRECTION
 #define TMC2130_LINEARITY_CORRECTION_XYZ
 //#define TMC2130_VARIABLE_RESOLUTION