mmc: sdhci_am654: Update comments in sdhci_am654_set_clock

The sdhci_am654_set_clock function is also used to enable
delay chain, therefore fix comments to be more generic in
case we are not enabling DLL.

Signed-off-by: Judith Mendez <jm@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20240320223837.959900-6-jm@ti.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>