[PATCH V4 2/2] clk: imx8mp: add mu root clk

[Stephen Boyd]

Quoting peng.fan at nxp.com (2020-06-02 20:36:00)
> From: Peng Fan <peng.fan at nxp.com>
> 
> Add mu root clk for mu mailbox usage.
> 
> Reviewed-by: Dong Aisheng <aisheng.dong at nxp.com>
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---

Acked-by: Stephen Boyd <sboyd at kernel.org>