reset: rzg2l-usbphy-ctrl: Add new driver

Add a new driver to control the USB 2.0 PHY reset controller on the
Renesas RZ/G2L and related SoCs.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
4 files changed