Correct the TLV 0x29 message

These patches are for:
- Upgrade Accton's u-boot sys_eeprom code to latest
- Revise 0x29 TLV name to 'ONIE Version'
- Make all Accton's u-boot shell be consistent

The 0x29 TLV name in the document is 'ONIE Version', but it is 'Loader Version' in the u-boot source.