Fixes off-by-one error when mounting an eeprom emulation that is created but empty.
Fixes off-by-one error when mounting an eeprom emulation that is created but empty.

bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn