usb: dwc3: Disable USB20 internal retry feature

Disable USB20 internal retry feature for dwc3 version 170A-GA to avoid
controller lockup due to snps star:'9001346572:Host stops transfers
to other EPs when a single USB2.0 EP NAKs continuously'

Change-Id: I71f1d272f74dc51fed4617b7ea12c044160a69c7
Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>