USB: sync Queue Element Transfer Descriptor against EHCI spec

USB: sync Queue Element Transfer Descriptor against EHCI spec

Appendix B "EHCI 64-Bit Data Structures" of the "Enhanced Host
Controller Interface Specification for Universal Serial Bus" (Rev.
1.0, March 12, 2002) defines additional fields which were missing in
U-Boot's struct qTD; as these are also present in recent versions of
struct ehci_qtd in the Linux kernel, we add them here, too.

This fixes some nasty memory corruption problems.

Reported-by: Dan Lykowski <[email protected]>
See http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/76942

Signed-off-by: Wolfgang Denk <[email protected]>
Cc: Remy Bohmer <[email protected]>
Cc: Dan Lykowski <[email protected]>
Cc: Stefano Babic <[email protected]>
Tested-by: Stefano Babic <[email protected]>