tegra: beaver/apalis: Fix DTC warning

Fix warning when compiling tegra30-beaver/-apalis.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: Tom Warren <twarren@nvidia.com>