CHROMIUM: xhci: fix USB3 device undetected after resume

CHROMIUM: xhci: fix USB3 device undetected after resume

Some xHC controllers (e.g. Rockchip rk3399) integrated in
DWC3 IP, will be powered down in S3, and reinitialized after
resume.

However, if a USB3 device is plugged before system enter S3,
the device will be disconnected after resume because of xHC
lose power. And the device can't be detected again even if
we reinitialize xHC. In this case, CCS and CSC is '0' and
can't reflect the current state of the port, also the link
state stays in Rx.Detect.

So try to do warm reset on resume to reset USB3 device to
the default state, also reset a USB3 link, and re-exchange
link configuration information.

BUG=chrome-os-partner:58347
TEST=Plug an USB3 flash drive in rk3399 Kevin board Type-C
port, then set system enter S3. Wakeup system, check if USB3
device can be detected after resume.

Change-Id: I90975a48866569f2c2422a244afc618a3e427f57
Signed-off-by: William wu <wulf@rock-chips.com>
Reviewed-on: https://chromium-review.googlesource.com/412487
Commit-Ready: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
Tested-by: Inno Park <ih.yoo.park@samsung.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>