linux-phytec-fsl

usb: chipidea: udc: move write barrier into hw_ep_prime

Since there should be a write barrier before every call of
hw_ep_prime we could move it into hw_ep_prime.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>