Non-MMIO devices, which are BTW not really part of the SoC, should not
be within simple-bus, as reported by dtc W=1 warning:

  hip05.dtsi:301.30-305.5: Warning (simple_bus_reg): /soc/refclk200mhz: missing or empty reg/ranges property
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>