Revert "MErge EHCI workaround"

This reverts commit 5b1f9485a3cb34bb507d73bbf924075a4f24ec54.
Revert "Revert "omap: usb: host: merge and adapt settings from 3.4 backpüoprt to 3.0.31""

This reverts commit aa01e8f77b58ab4fef85b9eb743884ff9c7a8ad9.