Updated MiniDox split_util.h and eeprom files to reflect this change.
I recommend adding this to any split board that used these files, my changes will not effect them currently.
if you compare split_util.h with the original project by ahtn, the
address we look for isLeftHand config went from addr 7 to addr 10
(decimal). The EEP files were not updated.
EE_HANDS should not be enabled by default since it's more confusing for
most users