phy: sun4i-usb: Use CLK and RESET support

Now clock and reset drivers are available for respective
SoC's so use clk and reset ops on phy driver.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Marek Vasut <marex@denx.de>