usb: chipidea: imx: add stream mode enable for device mode at imx6sl/imx6sx

Stream mode enable is known for better performance, this stream mode
enable patch has been passed with stress tests at device mode for
imx6sl and imx6sx, and no issue is found.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
This commit is contained in:
Peter Chen 2014-10-30 11:10:04 +08:00
commit 0ef877a408