[PATCH v5 5/9] coresight: use const for device_node structures

[Stephen Boyd]

On 03/26, Leo Yan wrote:
> Almost low level functions from open firmware have used const to
> qualify device_node structures, so add const for device_node
> parameters in of_coresight related functions.
> 
> Signed-off-by: Leo Yan <leo.yan at linaro.org>
> ---

Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>

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