clk: sunxi-ng: sun4i: Export video PLLs

The video PLLs are used directly by the HDMI controller. Export them so
that we can use them in our DT node.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

clk: sunxi-ng: Add sun4i/sun7i CCU driver

Introduce a clock controller driver for sun4i A10 and sun7i A20
series SoCs.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>