Several of the EHCI glue drivers either predate or were merged in the
same timeframe as API changes at the USB core level, resulting in some
missing endpoint_reset and clear_tt_buffer_complete callbacks.

This fixes up all of ehci-atmel, mxc, w90x900, and xilinx-of to tie in
the new helpers, which brings them in line with everyone else.
Reported-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>