clk: mediatek: Pass device to clk_hw_register for PLLs

clk: mediatek: Pass device to clk_hw_register for PLLs

Passing the struct device pointer to clk_hw_register allows for runtime
power management to work for the registered clock controllers. However,
the mediatek PLL clocks do not do this.

Change this by adding a struct device pointer argument to
mtk_clk_register_pll, and fix up the only other user of it. Also add a
new member to the struct mtk_clk_pll for the struct device pointer,
which is set by mtk_clk_register_pll and is used by
mtk_clk_register_pll_ops.

If mtk_clk_register_pll is called with a NULL struct device pointer,
then everything still works as expected; the clock core will simply
treat them as previously, i.e. without runtime power management.

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>