Changes
=== Rev 1.4 Changes ===
* Release date: 08/12/2015
* Starting serial number (SN): TBD
* USB current limiters fix
* Added SBC revision EEPROM
=== Rev 1.3 Changes ===
* Release date: 01/11/2015
* Starting serial number (SN): 1151102-00003
* Default option for POWER_BUT emulation of RSMRST# - previous -IPON2
* Always-on audio detection
