OMAP34xx USB: EHCI: fix CRC errors

Fix OMAP34xx EHCI OUT transfer CRC errors. The issue was observed because
the burst DMA access was not enabled resulting in data under-run condition
on OUT transfers.

The side effect of this was CRC errors on OUT transfers with complemented CRC
and multiple retries of each OUT transfer, before success.

Also minor fix to change the Copyright header in OMAP34xx EHCI files

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>