MLK-21052-08 clk: imx: Add CLK_SET_PARENT_NOCACHE

MLK-21052-08 clk: imx: Add CLK_SET_PARENT_NOCACHE

Implement a CLK_SET_PARENT_NOCACHE flag in clk core for imx8 clk
implementation where the parent needs to be restore after PM domain is
up.

Reviewed-by: Anson Huang <anson.huang@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@nxp.com>
(cherry picked from commit 87e997822c050fc7dc027a863c92f1f0b4816515)
[Leonard: split clk core part]
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>