usb: dwc2: host: fix descriptor list address masking

Masks for HCDMA.CTD and HCDMA.DMAAddr are incorrect. As we always
start from first descriptor, no need to mask the address anyway.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>