Stratix 10 PCIe controller does not support Type 1 to Type 0 conversion
as previous version (V1) does so the PCIe controller configuration
mechanism needs to send Type 0 config TLP if the target bus number
matches with the secondary bus number.

Implement a function to form a TLP header that depends on the PCIe
controller version, so that the header can be formed according to
specific host controller HW internals, fixing the type conversion issue.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>