[PATCH] clk: stm32mp1: Add CLK_IGNORE_UNUSED to ck_sys_dbg clock

[Stephen Boyd]

Quoting gabriel.fernandez at st.com (2018-04-24 00:58:43)
> From: Gabriel Fernandez <gabriel.fernandez at st.com>
> 
> Don't disable the dbg clock if was set by bootloader.
> 
> Signed-off-by: Gabriel Fernandez <gabriel.fernandez at st.com>
> ---

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