pci: intel: Fix configuration type based on secondary number

This fix issue when access config from PCIe switch.

The PCIe controller need to send Type 0 config TLP if the targeting bus
matches with the secondary bus number, which is when the TLP is targeting
the immediate device on the link.

The PCIe controller send Type 1 config TLP if the targeting bus is
larger than the secondary bus, which is when the TLP is targeting the
device not immediate on the link.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>