usb: dwc2: gadget: LPM flow fix

commit 5d69a3b5 upstream.

Added functionality to exit from L1 state by device initiation
using remote wakeup signaling, in case when function driver queuing
request while core in L1 state.

Fixes: 273d576c ("usb: dwc2: gadget: Add functionality to exit from LPM L1 state")
Fixes: 88b02f2c ("usb: dwc2: Add core state checking")
CC: stable@vger.kernel.org
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/b4d9de5382375dddbf7ef6049d9a82066ad87d5d.1710166393.git.Minas.Harutyunyan@synopsys.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>