usb: gadget: Add support for RZ/V2M USB3DRD driver

The RZ/V2M USB3.1 Gen1 Interface (USB) composed of a USB3.1 Gen1 Dual Role
Device controller (USB3DRD), a USB3.1 Gen1 Host controller (USB3HOST), a
USB3.1 Gen1 Peripheral controller (USB3PERI).

The reset for both host and peri are located in USB3DRD block. The
USB3DRD registers are mapped in the AXI address space of the Peripheral
module.

Add USB3DRD driver to handle reset for both host and peri modules.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230121145853.4792-6-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>