arm64: dts: hip06: Correct hardware pin number of usb node

The ohci/ehci hardware pin number should be 640/641, correct them.

Fixes: commit aa8d3e74 ("arm64: dts: Add initial dts for Hisilicon Hip06 D03 board")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>