UPSTREAM: usb: dwc3: st: Inform the reset framework that our reset line may be shared

UPSTREAM: usb: dwc3: st: Inform the reset framework that our reset line may be shared

On the STiH410 B2120 development board the MiPHY28lp shares its reset
line with the Synopsys DWC3 SuperSpeed (SS) USB 3.0 Dual-Role-Device
(DRD).  New functionality in the reset subsystems forces consumers to
be explicit when requesting shared/exclusive reset lines.

Change-Id: Id9ff5e3beadada3aeb5dc8a6085d9bd86255f45c
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
(cherry picked from commit 002f17bc54ff4005260d8e6e6700de97f5b25679)