x86: cherryhill: Fix DTC warning

Fix warning when compiling cherryhill.dts with latest DTC:

  "Warning (avoid_unnecessary_addr_size): /pci/pch@1f,0: unnecessary
   #address-cells/#size-cells without "ranges" or child "reg" property"

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
1 file changed