usb: cdns3: Enable TDL_CHK only for OUT ep

ZLP gets stuck if TDL_CHK bit is set and TDL_FROM_TRB is used
as TDL source for IN endpoints. To fix it, TDL_CHK is only
enabled for OUT endpoints.

Fixes: 7733f6c3

 ("usb: cdns3: Add Cadence USB3 DRD Driver")
Reported-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Sanket Parmar <sparmar@cadence.com>
Link: https://lore.kernel.org/r/1621263912-13175-1-git-send-email-sparmar@cadence.com
Signed-off-by: Peter Chen <peter.chen@kernel.org>