ARM: dts: hisilicon: fix errors detected by synopsys-dw-mshc.yaml

Look at the clock-names schema defined in synopsys-dw-mshc.yaml:
  clock-names:
    items:
      - const: biu
      - const: ciu

The "biu" needs to be placed before the "ciu".

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>