clk: rockchip: add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks

Add CLK_SET_RATE_PARENT to sclk for rk3066a i2s and uart clocks,
so that the parent COMPOSITE_FRACMUX and COMPOSITE_NOMUX
also update.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20201118135822.9582-2-jbx6244@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>