Bitfields for OpenHCI "HcCommandStatus" register:
Bit(s)	Description	)
 31-18	reserved
 17-16	SOC	scheduling-overrun count
 15-4	reserved
 3	OCR	ownership change request is pending
 2	BLF	bulk list contains TDs
 1	CLF	control list contains TDs
 0	HCR	host controller software reset
Note:	writing a 1 bit sets the corresponding bit, while a 0 bit leaves the
	  corresponding bit unchanged
SeeAlso: #00902,#00903,#00906