phy: renesas: phy-rcar-gen3-usb2: Control VBUS for RZ/G2L SoCs

Use regulator_hardware_enable() for controlling VBUS enable for
RZ/G2L alike SoCs in interrupt context.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20240702180032.207275-4-biju.das.jz@bp.renesas.com


Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>