serial: qcom-geni: clean up clock-rate debug printk

Make the clock-rate debug printk more readable by using an equal sign
instead of a dash as separator between names and values and adding some
spaces:

	qcom_geni_serial 988000.serial: desired_rate = 1843200, clk_rate = 7372800, clk_div = 4

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230714130214.14552-3-johan+linaro@kernel.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>