* ROMHDR base addr is spl virtual 0x80000000 = 11800000 physical, LK will relocate to correct address (MEMBASE)
* save reboot reason at 0x2FFB0000 (ramconsole - 0x1000 (PAGE_SIZE)) and @0x2FFB0004 XOR 0x004b4c63 (cLK signature)
* added oem cmd to fastboot and oemcmd.bat for PC
