This patch adjust the RK3528 U3 Rx squelch input filler bandwidth to 3'b110 which is used for rx_lfps, reduce the bandwidth to avoid filtering valid superspeed data. With this patch, it can fix the issue that Kingston U3 Disk (idVendor=0951, idProduct=1666, bcdDevice= 1.10) read error on RK3528 platforms. Change-Id: Ifa4eac24bbdebe020db356ba45dae146f4df22f1 Signed-off-by: William Wu <william.wu@rock-chips.com>