usb: dwc3: Execute GCTL Core Soft Reset while switch mdoe for Hisilicon Kirin Soc

A GCTL soft reset should be executed when switch mode for dwc3 core
of Hisilicon Kirin Soc.

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Signed-off-by: Yu Chen <chenyu56@huawei.com>