Sync 3 trackers.
1. A bug that may cause the low/full speed device behind 2.0 hub will not work.
2. MajorRevision and MinorRevision need updating.
3. Misuse UhciConvertPollRate in UHCI driver.
[Impaction]:
EhicDxe, UhciDxe and UsbBusDxe.
[Reference Info]:
EDK tracker 1122 - A bug that may cause the low/full speed device behind 2.0 hub will not work .
EDK tracker 1101 - Phoenix found issue in USB and Misuse UhciConvertPollRate in UHCI driver.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5370 6f19259b-4bc3-4df7-8a09-765794883524